Association between self-perception of the neighborhood environment and sleep problems in older Brazilian adults: findings from ELSI-Brazil

Associação entre autopercepção do ambiente da vizinhança e problemas de sono em idosos brasileiros: resultados do ELSI-Brasil

Asociación entre la autopercepción del entorno del vecindario y los problemas de sueño en ancianos brasileños: resultados del ELSI-Brasil

Daiana Vieira Sutil Bruno de Souza Moreira Jaquelini Betta Canever Letícia Martins Cândido Ana Lúcia Danielewicz Maria Fernanda Lima-Costa Núbia Carelli Pereira de Avelar About the authors

Abstract:

This study aimed to investigate associations between neighborhood perception and sleep problems in older Brazilian adults. A cross-sectional study was conducted with 5,719 community-dwelling older adults (≥ 60 years) from the Brazilian Longitudinal Study of Aging (ELSI-Brazil, 2019-2021). The outcomes were self-reported sleep problems: poor sleep quality, daytime sleepiness, primary insomnia complaints, difficulty staying asleep, and waking up at dawn. The exposure variables were questions about the perception of participants about the physical and social environment of the neighborhood. Logistic regression was used in data analysis. Garbage, rubbish, or tall grass on the streets and the desire to move were associated with higher odds of poor sleep quality. Concern about falling due to damaged sidewalks, concern about having difficulties taking transportation, and concern about having difficulties crossing the street were associated with higher odds of all sleep problems. Sound/noise of buses and cars was associated with higher odds of some sleep problems. Perceiving the neighborhood as a good place to live was associated with lower odds of daytime sleepiness and primary insomnia complaints. Trusting most people in the neighborhood and perceiving that kids and younger people treat adults with respect were associated with lower odds of daytime sleepiness, primary insomnia complaints, and waking up at dawn. Being a good place for kids to play and raise teenagers was associated with lower odds of daytime sleepiness. These results can assist public administrators in creating urban planning policies aimed at improving neighborhood environments as a means of health promotion.

Keywords:
Aging; Aged; Sleep Quality; Neighborhood Characteristics

Resumo:

Este estudo teve como objetivo investigar associações entre percepções da vizinhança e problemas de sono em idosos brasileiros. Foi realizado um estudo transversal com 5.719 idosos da comunidade (≥ 60 anos) do Estudo Longitudinal da Saúde dos Idosos Brasileiros (ELSI-Brasil, 2019-2021). Os desfechos foram problemas de sono autorreferidos: má qualidade do sono, sonolência diurna, queixas de insônia primária, dificuldade em manter o sono e acordar na madrugada. As variáveis de exposição foram: questões sobre a percepção dos participantes sobre o ambiente físico e social da vizinhança. Regressão logística foi utilizada na análise dos dados. Lixo, sujeira ou grama alta nas ruas e o desejo de mudar de onde mora foram associados a maiores chances de má qualidade do sono. Preocupação em cair devido a calçadas em má condição, preocupação com dificuldades para usar os meios de transporte e preocupação com dificuldades para atravessar a rua foram associadas a maiores chances de todos os problemas de sono. O som/ruído dos ônibus e carros foi associado a maiores chances de alguns problemas de sono. A percepção da vizinhança como um bom lugar para morar foi associado a menores chances de sonolência diurna e queixas de insônia primária. A confiança na maioria das pessoas da vizinhança e a percepção de que crianças e jovens tratam os adultos com respeito foram associados a menores chances de sonolência diurna, queixas de insônia primária e acordar na madrugada. Um bom lugar para as crianças brincarem e para os adolescentes crescerem foi associado a menores chances de sonolência diurna. Esses resultados podem ajudar os gestores públicos na criação de políticas de planejamento urbano voltadas a melhorias nos ambientes da vizinhança como forma de promoção da saúde.

Palavras-chave:
Envelhecimento; Idoso; Qualidade do Sono; Características da Vizinhança

Resumen:

Este estudio tuvo como objetivo investigar las asociaciones entre las percepcion del vecindario y los problemas de sueño en ancianos brasileños. Se realizó un estudio transversal con 5.719 ancianos de la comunidad (≥ 60 años) del Estudio Longitudinal de Salud de los Ancianos Brasileños (ELSI-Brasil, 2019-2021). Los desenlaces fueron los siguientes: problemas de sueño autoinformados: mala calidad del sueño, somnolencia diurna, quejas de insomnio primario, dificultad para permanecer dormido y despertarse durante la madrugada. Las variables de exposición fueron las siguientes: preguntas sobre la percepción de los participantes sobre el entorno físico y social del vecindario. En el análisis de datos se utilizó la regresión logística. La basura, la suciedad o el césped alto en las calles y el deseo de cambiar el lugar donde viven se asociaron con mayores probabilidades de tener una mala calidad del sueño. La preocupación por las caídas debido a aceras en mal estado, la preocupación por las dificultades para utilizar los medios de transporte y la preocupación por las dificultades para cruzar la calle se asociaron con mayores probabilidades de sufrir todos los problemas de sueño. El ruido producido por los autobuses y automóviles se asoció con una mayor probabilidad de sufrir algunos problemas de sueño. La percepción del vecindario como un buen lugar para vivir se asoció con menores probabilidades de sufrir somnolencia diurna y quejas de insomnio primario. La confianza en la mayoría de la gente del vecindario y la percepción de que los niños y jóvenes tratan a los adultos con respeto se asociaron con menores probabilidades de sufrir somnolencia diurna, quejas de insomnio primario y despertarse durante la madrugada. Un buen lugar para que los niños jugaran y para que los adolescentes crecieran se asoció con menores probabilidades de sufrir somnolencia diurna. Estos resultados pueden ayudar a los gestores públicos a crear políticas de planificación urbana dirigidas a mejorar los entornos vecinales como forma de promover la salud.

Palabras-clave:
Envejecimiento; Anciano; Calidad del Sueño; Características del Vecindario

Introduction

The sleep duration and architecture gradually change with aging and these changes can cause alterations that directly impact the quality of life of older adults 11. Altendahl M, Cotter DL, Staffaroni AM, Wolf A, Mumford P, Cobigo Y, et al. REM sleep is associated with white matter integrity in cognitively healthy, older adults. PLoS One 2020; 15:e0235395.. Sleep problems have become a growing public health concern 22. Gulia KK, Kumar VM. Sleep disorders in the elderly: a growing challenge. Psychogeriatrics 2018; 18:155-65., as their prevalence is quite high, particularly in developing countries 33. Simonelli G, Marshall NS, Grillakis A, Miller CB, Hoyos CM, Glozier N. Sleep health epidemiology in low and middle-income countries: a systematic review and meta-analysis of the prevalence of poor sleep quality and sleep duration. Sleep Health 2018; 4:239-50.,44. Gajardo YZ, Ramos JN, Muraro AP, Moreira NF, Ferreira MG, Rodrigues PRM. Sleep-related problems and associated factors among the Brazilian population: National Health Survey, 2013. Ciênc Saúde Colet 2021; 26:601-10.. In Brazil, about 15% of the adult population has sleep problems more than half of the days of the week 44. Gajardo YZ, Ramos JN, Muraro AP, Moreira NF, Ferreira MG, Rodrigues PRM. Sleep-related problems and associated factors among the Brazilian population: National Health Survey, 2013. Ciênc Saúde Colet 2021; 26:601-10. and the prevalence of this condition affects 36% of individuals aged 60 years and over 55. Canever JB, Cândido LM, Wagner KJP, Danielewicz AL, Avelar NCP. As diferentes tipologias do comportamento sedentário estão associadas ao histórico de problemas no sono em idosos comunitários? Cad Saúde Pública 2022; 38:e00156521..

Sleep problems involve disturbances in duration, initiation, efficiency, maintenance, stages, quality, and even daytime sleep behaviors 66. Li J, Vitiello MV, Gooneratne NS. Sleep in normal aging. Sleep Med Clin 2018; 13:1-11.. Changes in sleep patterns can contribute to several adverse health outcomes in older adults, such as dementia 77. López-García A, López-Fernández RM, Martínez-González-Moro I. Analysis of sleep quality in people with dementia: a preliminary study. Gerontol Geriatr Med 2023; 9:233372142311514., depression 88. Bohn L, Abdalla PP, Chen S, Queiroz Neto ES, Machado DRL, Mota J, et al. Behavioral, sociodemographic, and sleep correlates of symptoms of depression amongst older Brazilian females according to age: a cross-sectional network analysis. Curr Aging Sci 2023; 16:143-52., obesity 99. Norton MC, Eleuteri S, Cerolini S, Ballesio A, Conte SC, Falaschi P, et al. Is poor sleep associated with obesity in older adults? A narrative review of the literature. Eat Weight Disord 2018; 23:23-38., and cardiopulmonary diseases 1010. Caballero FF, Lana A, Struijk EA, Arias-Fernández L, Cárdenas-Valladolid J, Salinero-Fort MA, et al. Multimorbidity patterns in older adults: the role of social variables and lifestyle behaviors. Gerontology 2023; 69:716-27.. Recent evidence has shown that changes in self-perception of sleep, including poor sleep quality, daytime sleepiness, primary insomnia complaints, difficulty staying asleep, or waking up at dawn, are associated with painful manifestations 1111. Canever JB, Cândido LM, Souza Moreira B, Danielewicz AL, Cimarosti HI, Lima-Costa MF, et al. A nationwide study on pain manifestations and sleep problems in community-dwelling older adults: findings from ELSI-Brazil. Eur Geriatr Med 2023; 14:307-15., disability in basic and instrumental activities of daily living, and reduced practice of physical exercises 1212. De Nys L, Anderson K, Ofosu EF, Ryde GC, Connelly J, Whittaker AC. The effects of physical activity on cortisol and sleep: a systematic review and meta-analysis. Psychoneuroendocrinology 2022; 143:105843..

Several individual factors are related to sleep problems in older adults, such as sedentary behavior 55. Canever JB, Cândido LM, Wagner KJP, Danielewicz AL, Avelar NCP. As diferentes tipologias do comportamento sedentário estão associadas ao histórico de problemas no sono em idosos comunitários? Cad Saúde Pública 2022; 38:e00156521., physical inactivity 44. Gajardo YZ, Ramos JN, Muraro AP, Moreira NF, Ferreira MG, Rodrigues PRM. Sleep-related problems and associated factors among the Brazilian population: National Health Survey, 2013. Ciênc Saúde Colet 2021; 26:601-10., systemic arterial hypertension 1313. Uchmanowicz I, Markiewicz K, Uchmanowicz B, Koltuniuk A, Rosinczuk J. The relationship between sleep disturbances and quality of life in elderly patients with hypertension. Clin Interv Aging 2019; 14:155-65., and polypharmacy 1414. McCarthy CE. Sleep disturbance, sleep disorders and co-morbidities in the care of the older person. Med Sci 2021; 9:31.. Some studies have also observed an association between the physical and social environment characteristics of a neighborhood and sleep problems in the older population. Physical disorder (e.g., graffiti and littering in the streets) and perception of insecurity were associated with difficulty falling asleep and waking up feeling rested 1515. Bierman A, Lee Y, Schieman S. Neighborhood disorder and sleep problems in older adults: subjective social power as mediator and moderator. Gerontologist 2018; 58:170-80.,1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4., mainly in older adults with worse socioeconomic conditions 1515. Bierman A, Lee Y, Schieman S. Neighborhood disorder and sleep problems in older adults: subjective social power as mediator and moderator. Gerontologist 2018; 58:170-80.,1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4.,1717. Yang Y, Cho A, Nguyen Q, Nsoesie EO. Association of neighborhood racial and ethnic composition and historical redlining with built environment indicators derived from street view images in the US. JAMA Netw Open 2023; 6:e2251201.. A recent study conducted with older Japanese adults from urban and rural areas demonstrated that concern with community mobility and problems related to public services and facilities negatively influenced sleep quality 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398.. The authors observed that living in places that are difficult to walk (e.g., with hills or steps) or without shops and public places to visit was associated with worse sleep quality 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398.. However, other contextual characteristics, such as street quality, noise pollution, and difficulties taking transportation, were not evaluated. It is important to note that, in general, previous studies on this theme investigated only the sleep quality or all sleep problems together, not analyzing the different types of sleep problems separately, such as daytime sleepiness, primary insomnia complaints, difficulty staying asleep, and waking up at dawn 1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4.,1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398..

Additionally, most studies that evaluated the association between neighborhood environment and different sleep problems in older adults come from developed countries 1515. Bierman A, Lee Y, Schieman S. Neighborhood disorder and sleep problems in older adults: subjective social power as mediator and moderator. Gerontologist 2018; 58:170-80.,1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4.,1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398.. Therefore, the findings of these studies cannot apply to developing countries, such as Brazil, which have completely distinct contextual, socioeconomic, and technological characteristics. Therefore, the present study aimed to examine the association between self-perception of the neighborhood environment and sleep problems in a nationally representative sample of community-dwelling older Brazilian adults. Knowledge of these associations has the potential to contribute to the implementation of health education strategies and the creation of public policies to improve the neighborhood’s physical and social environment, aiming to prevent or reduce sleep problems and their consequences in this population.

Methods

Study design and ethical aspects

This is a cross-sectional analysis carried out with data from the second wave of the Brazilian Longitudinal Study of Aging (ELSI-Brazil). The ELSI-Brazil is a household-based survey conducted with a nationally representative sample of individuals aged 50 years and over. The second wave was conducted in 2019-2021 and included participants from the first wave (2015-2016) in addition to sample replacement to ensure national representativeness. To ensure that the sample represents the urban and rural areas of small, medium, and large municipalities, ELSI-Brazil adopted a multistage stratified cluster sampling, combining stratification of primary sampling units (municipalities), census tracts, and households. More details about ELSI-Brazil’s sampling and methods can be seen in previous publications 1919. Lima-Costa MF, Andrade FB, Souza Jr. PRB, Neri AL, Duarte YAO, Castro-Costa E, et al. The Brazilian Longitudinal Study of Aging (ELSI-Brazil): objectives and design. Am J Epidemiol 2018; 187:1345-53.,2020. Lima-Costa MF, Mambrini JVM, Andrade FB, Souza Jr. PRB, Vasconcellos MTL, Neri AL, et al. Cohort profile: the Brazilian Longitudinal Study of Ageing (ELSI-Brazil). Int J Epidemiol 2023; 52:e57-e65.. Other details can also be found on the survey’s homepage (http://elsi.cpqrr.fiocruz.br/). The ELSI-Brazil was approved by the Research Ethics Committee of the René Rachou Institute, Oswaldo Cruz Foundation (CAAE: 34649814.3.0000.5091), and all participants signed an informed consent form in advance of their participation in the study.

Population and sample

The ELSI-Brazil population is composed of community-dwelling adults aged 50 and over residing in 70 municipalities across all five Brazilian macro-regions. The second wave of ELSI-Brazil included 9,949 participants. In the current study, only participants aged 60 years and over were eligible for the analyses. Thus, data from 3,020 participants were excluded due to an age criterion. In addition, we excluded data from 1,142 participants living in rural areas, as their neighborhood environment is different from those living in urban areas, and from 68 older adults whose interview was answered by a substitute informant (i.e., proxy). Therefore, 5,719 participants composed our analytical sample.

Exposure variables

The exposure variables included 16 questions regarding the participants’ perception of the physical and social environment of the neighborhood. The concept of neighborhood was previously presented to each participant. The neighborhood was defined as the place where a person lives and performs their daily life tasks, such as going to a bakery, grocery, local shops, visiting neighbors, and going for walks. It could be also understood as the place where the participant knows most of the people.

Neighborhood physical environment characteristics

The questions included in this analysis were as follows: (a) physical disorder: “In your neighborhood, are there houses and buildings with graffiti on the walls, broken windows, damaged walls, or abandoned?” (yes or no), “In your neighborhood, is there garbage, rubbish, or tall grass on the streets, sidewalks, or vacant lots?” (yes or no), “In the last 3 months, have you seen rats or signs of them on the street where you live?” (yes or no); (b) concerns with community mobility: “When you leave your home, are you concerned about falling due to damaged sidewalks?” (yes or no), “When you leave your home, are you concerned about having difficulties taking the bus, subway, or train?” (yes or no), “When you leave your home, are you concerned about having difficulties crossing the street?” (yes or no); (c) noise pollution: “In your neighborhood, does the sound/noise of buses and cars bother you?” (yes or no); (d) services: “In your neighborhood, are there grocery shops, street markets, or other selling points with a variety of fresh fruits and vegetables?” (yes or no).

Neighborhood social environment characteristics

The questions investigated in this study were the following: (a) safety: “Thinking about crimes and violence, which of the following sentences better defines your neighborhood?” (very safe, safe, or very unsafe); (b) violence: “In the past 12 months, have you been a victim of theft/robbery or had your home broken into?” (yes or no); (c) social cohesion: “Do you believe you can trust most people in your neighborhood?” (yes, more or less, or no); (d) pleasantness: “Is your neighborhood a good place to live?” (yes, more or less, or no), “Do kids and younger people in your neighborhood treat adults with respect? (yes, more or less, or no), “Is your neighborhood a good place for kids to play and to raise teenagers?” (yes, more or less, or no), “Is it nice to walk, jog, or ride a bicycle in your neighborhood?” (yes, more or less, or no), “Would you like to move from where you live?” (yes or no).

Participants who answered “very safe” and “safe” in the question of safety dimension were grouped into the same category. Similarly, for questions of social cohesion and pleasantness dimensions, participants who answered “more or less” and “no” were grouped. The remaining questions had only two answer options, which represented different categories.

Outcomes

The outcomes were five different types of sleep problems frequently reported by older adults and included the self-report of poor sleep quality 2121. Billings ME, Hale L, Johnson DA. Physical and social environment relationship with sleep health and disorders. Chest 2020; 157:1304-12., daytime sleepiness 2222. Bittencourt LRA, Silva RS, Santos RF, Pires MLN, Mello MT. Excessive daytime sleepiness. Rev Bras Psiquiatr 2005; 27 Suppl 1:16-21., primary insomnia complaints 2323. Monti JM. Primary insomnia: differential diagnosis and treatment. Rev Bras Psiquiatr 2000; 22:31-4., difficulty staying asleep, and waking up at dawn 2424. Perlis ML, Gehrman P. Types of insomnia. In: Kushida CA, editor. Encyclopedia of sleep. Amsterdam: Elsevier; 2013. p. 199-202..

Sleep quality was assessed using the following question: “How would you evaluate the quality of your sleep?”, with the response options: (1) very good; (2) good; (3) fair; (4) bad; (5) very bad. This variable was recategorized into poor sleep quality (response options 4 and 5) and good sleep quality (response options 1, 2, and 3).

Daytime sleepiness was assessed by the question: “How often do you wake up feeling rested in the morning?”, with the following response options: (1) most of the time; (2) sometimes; (3) never/rarely. This variable was recategorized in the presence of daytime sleepiness (response options 2 and 3) and absence of daytime sleepiness (response option 1).

Primary insomnia complaints (initial insomnia), difficulty staying asleep (intermediate insomnia), and waking up at dawn (final insomnia) were evaluated by the following questions, respectively: “How often do you have trouble falling asleep (laying down and sleeping)?”, “How often do you have trouble sleeping because you wake up during the night?”, and “How often do you have trouble sleeping because you wake up too early and cannot go back to sleep?”, with the response options: (1) most of the time; (2) sometimes; (3) never/rarely. These variables were recategorized in the presence of insomnia (response options 1 and 2) and absence of insomnia (response option 3).

Adjustment variables

The adjustment variables considered in this study were: (1) sociodemographic characteristics: sex (male or female) 2525. Lu L, Wang S-B, Rao W, Zhang Q, Ungvari GS, Ng CH, et al. The prevalence of sleep disturbances and sleep quality in older Chinese adults: a comprehensive meta-analysis. Behav Sleep Med 2019; 17:683-97.,2626. Meers J, Stout-Aguilar J, Nowakowski S. Sex differences in sleep health. In: Grandner MA, editor. Sleep and health. Cambridge: Elsevier Academic Press; 2019. p. 21-9.,2727. Wang Y, Li Y, Liu X, Liu R, Mao Z, Tu R, et al. Gender-specific prevalence of poor sleep quality and related factors in a Chinese rural population: the Henan Rural Cohort Study. Sleep Med 2019; 54:134-41., age group (60-69, 70-79, or ≥ 80 years) 2828. Klerman EB, Dijk DJ. Age-related reduction in the maximal capacity for sleep - implications for insomnia. Curr Biol 2008; 18:1118-23., education (illiterate, 1-4, 5-8, or ≥ 9 years of education) 2929. Mota SG, Jesus ITM, Inouye K, Macedo MNGF, Brito TRP, Santos-Orlandi AA. Is poor quality sleep present in older adults with worse social and health status? Texto & Contexto Enferm 2021; 30:e20200614., marital status (not married or married/stable union) 2929. Mota SG, Jesus ITM, Inouye K, Macedo MNGF, Brito TRP, Santos-Orlandi AA. Is poor quality sleep present in older adults with worse social and health status? Texto & Contexto Enferm 2021; 30:e20200614., time of residence in the same municipality (0-9, 10-19, 20-29, 30-39, 40-49, or ≥ 50 years), and household income per capita (< 1, ≥ 1 and < 3, or ≥ 3 Brazilian minimum wages) 1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4.; (2) health characteristics: multimorbidity (yes or no) 3030. Hernández B, Scarlett S, Moriarty F, Romero-Ortuno R, Kenny RA, Reilly R. Investigation of the role of sleep and physical activity for chronic disease prevalence and incidence in older Irish adults. BMC Public Health 2022; 22:1711., body mass index (BMI) (underweight: < 22.0kg/m2, eutrophic: 22.0-27.0kg/m2, or overweight: > 27.0kg/m2) 3131. Johnson KA, Gordon CJ, Chapman JL, Hoyos CM, Marshall NS, Miller CB, et al. The association of insomnia disorder characterised by objective short sleep duration with hypertension, diabetes and body mass index: a systematic review and meta-analysis. Sleep Med Rev 2021; 59:101456., sleeping medication (yes or no) 3232. Argyropoulous K, Damka P Argyropoulou A, Avramidis D, Jelastopulu E. Is polypharmacy risk factor for insomnia later in life? A cross-sectional study in Greece. EC Psychol Psychiatr 2020; 9:1-5., and cognitive function (with or without cognitive impairment) 3333. Kondo R, Miyano I, Lee S, Shimada H, Kitaoka H. Association between self-reported night sleep duration and cognitive function among older adults with intact global cognition. Int J Geriatr Psychiatry 2021; 36:766-74.; (3) lifestyle characteristics: leisure-time physical activity level (sufficiently active or insufficiently active) 3434. Wang F, Boros S. The effect of physical activity on sleep quality: a systematic review. Eur J Physiother 2021; 23:11-8..

Multimorbidity was defined as the self-reported presence of two or more previous health conditions diagnosed by a physician, including systemic arterial hypertension, diabetes mellitus, hypercholesterolemia, myocardial infarction, angina pectoris, heart failure, stroke, asthma, chronic obstructive pulmonary disease, arthritis or rheumatism, osteoporosis, chronic back problems, depression, cancer, chronic renal failure, Parkinson’s disease, and Alzheimer’s disease. Cognitive function was assessed using a battery of tests applied across countries participating in the Health and Retirement Family Studies2020. Lima-Costa MF, Mambrini JVM, Andrade FB, Souza Jr. PRB, Vasconcellos MTL, Neri AL, et al. Cohort profile: the Brazilian Longitudinal Study of Ageing (ELSI-Brazil). Int J Epidemiol 2023; 52:e57-e65.. Cognitive impairment was defined when the score was < 6 points for language/executive function, < 2 points for temporal orientation, and < 3 points for combined memory (immediate and delayed memory). The physical activity level was assessed by the short version of the International Physical Activity Questionnaire (IPAQ). Participants who performed > 150 minutes/week of moderate physical activity or walking or > 75 minutes/week of vigorous physical activity were considered sufficiently active.

Statistical analysis

Data analyses were performed using the statistical software Stata, version 14.0 (https://www.stata.com). In the descriptive analysis, variables were presented using relative frequency (%) and 95% confidence interval (95%CI). To investigate the association between self-perception of the neighborhood environment and sleep problems, a logistic regression analysis was performed, estimating adjusted odds ratios (OR) and 95%CI. All analyses considered the weights of the individuals and the complex sample design through the survey (svy) command. The significance level was set at p-value < 0.05.

Results

Table 1 shows the sociodemographic, health, and lifestyle characteristics of the study population (5,719 participants) and according to the investigated sleep problems. Most participants were female (55%), aged between 60-69 years (55.1%), had 1-4 years of education (42.7%), were not married (55.8%), lived for ≥ 50 years in the same municipality (51.6%), had a household income per capita of < 1 minimum wage (61.1%), presented multimorbidity (60%), were overweight (52.8%), did not use sleep medication (85.4%), exhibited no cognitive impairment (67.8%), and were insufficiently active during leisure time (81.3%) (Table 1). The description of the prevalence rates of the perceived neighborhood characteristics according to sleep problems can be seen in Table 2.

Table 1
Description of sociodemographic, health, and lifestyle characteristics for the total sample and according to sleep problems in older adults (≥ 60 years). Brazilian Longitudinal Study of Aging (ELSI-Brazil), 2019-2021.
Table 2
Description of physical and social environment characteristics of the neighborhood according to sleep problems in older adults (≥ 60 years). Brazilian Longitudinal Study of Aging (ELSI-Brazil), 2019-2021.

The prevalence of sleep problems was 16.1% for poor sleep quality, 37.9% for daytime sleepiness, 48.3% for primary insomnia complaints, 48.3% for difficulty staying asleep, and 44.9% for waking up at dawn (Figure 1).

Figure 1
Prevalence (%) of sleep problems.

The adjusted associations between the neighborhood’s physical and social environment characteristics and different types of sleep problems are described in Tables 3 and 4, respectively. According to the models, older adults who perceived their neighborhoods as having garbage, rubbish, or tall grass on the streets, sidewalks, or vacant lots presented greater odds of having poor sleep quality (OR = 1.51). Older adults who were concerned about falling due to damaged sidewalks had greater odds of presenting poor sleep quality (OR = 1.45), daytime sleepiness (OR = 1.41), primary insomnia complaints (OR = 1.41), difficulty staying asleep (OR = 1.29), and waking up at dawn (OR = 1.48). Participants who were concerned about having difficulties taking the bus, subway, or train were more likely to present poor sleep quality (OR = 1.50), daytime sleepiness (OR = 1.75), primary insomnia complaints (OR = 1.63), difficulty staying asleep (OR = 1.52), and waking up at dawn (OR = 1.66). Similarly, older adults who were concerned about having difficulties crossing the street presented higher odds of poor sleep quality (OR = 1.72), daytime sleepiness (OR = 1.58), primary insomnia complaints (OR = 1.54), difficulty staying asleep (OR = 1.51), and waking up at dawn (OR = 1.63). Moreover, participants who perceived their neighborhoods as having sound/noise of buses and cars were more likely to report poor sleep quality (OR = 1.55), difficulty staying asleep (OR = 1.51), and waking up at dawn (OR = 1.40) compared to those who did not perceive the same characteristic of neighborhood’s physical environment (Table 3).

Table 3
Adjusted * association between neighborhood physical environment characteristics and sleep problems in older adults (≥ 60 years). Brazilian Longitudinal Study of Aging (ELSI-Brazil), 2019-2021.
Table 4
Adjusted * association between neighborhood social environment characteristics and sleep problems in older adults (≥ 60 years). Brazilian Longitudinal Study of Aging (ELSI-Brazil), 2019-2021.

Regarding the neighborhood social environment characteristics, older adults who reported trusting most people in their neighborhood were less likely to have daytime sleepiness (OR = 0.65), primary insomnia complaints (OR = 0.71), and waking up at dawn (OR = 0.73). Participants who perceived the neighborhood as a good place to live showed lower odds of daytime sleepiness (OR = 0.57) and primary insomnia complaints (OR = 0.66), while those who lived in neighborhoods where kids and younger people treat adults with respect were less likely to report daytime sleepiness (OR = 0.64), primary insomnia complaints (OR = 0.67), and waking up at dawn (OR = 0.74). Older adults who perceived their neighborhood as a good place for kids to play and to raise teenagers were less likely to have daytime sleepiness (OR = 0.67) and those who desired to move were more likely to present poor sleep quality (OR = 1.52) (Table 4).

Discussion

The results from this study revealed that several characteristics of the neighborhood’s physical and social environment were associated with sleep problems among older adults living in urban areas in Brazil. After adjusting for potential confounders, environmental characteristics related to concerns with community mobility (falling due to damaged sidewalks and having difficulties taking public transportation and crossing the street) were positively associated with all the sleep problems studied. Positive associations were also observed between physical disorder (garbage, rubbish, or tall grass on the streets) and poor sleep quality, between noise pollution (sound/noise of buses and cars) and poor sleep quality, difficulty staying asleep, and waking up at dawn, and between pleasantness (desire to move from where living) and poor sleep quality. Social cohesion (trust in neighbors) was negatively associated with daytime sleepiness, primary insomnia complaints, and waking up at dawn. In addition, negative associations were observed between a good place to live and daytime sleepiness and primary insomnia complaints, between a neighborhood where kids and younger people treat adults with respect and daytime sleepiness, primary insomnia complaints, and waking up at dawn, and between a good place for kids to play and to raise teenagers and daytime sleepiness.

Older adults who reported the presence of garbage, rubbish, or tall grass on the streets, sidewalks, or vacant lots in their neighborhoods were more likely to have poor sleep quality. Unlike the present study, Watanabe et al. 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398. did not observe an association between places with non-discarded garbage and sleep problems in older Japanese adults. This divergence across studies may be related to socioeconomic differences between the studied populations. The presence of garbage in the neighborhood in countries with great socioeconomic inequality such as Brazil could limit walking, outdoor activities and exercises, and access to public places in the neighborhood, particularly among lower-income populations 3535. Amorim TC, Azevedo MR, Hallal PC. Physical activity levels according to physical and social environmental factors in a sample of adults living in South Brazil. J Phys Act Health 2010; 7 Suppl 2:S204-12.. Moreover, prior research has pointed out that older adults who experience current financial hardships or financial strain throughout their lifespan have limited housing options, forcing them to reside in disordered, impoverished, densely populated, noisy, and/or unsafe neighborhoods, which can affect their sleep quality 3636. Gamaldo AA, Gamaldo CE, Allaire JC, Aiken-Morgan AT, Salas RE, Szanton S, et al. Sleep complaints in older blacks: do demographic and health indices explain poor sleep quality and duration? J Clin Sleep Med 2014; 10:725-31.. This kind of environment, in turn, would lead to the confinement of older adults within their own homes and, consequently, would increase the time spent in sedentary behavior 3737. Arins GCB, Santos CES, Giehl MWC, Benedetti TRB, Oliveira C, D'Orsi E, et al. Neighborhood environmental characteristics and sedentary behavior in later life: the EpiFloripa Study. Rev Bras Ativ Fís Saúde 2018; 23:e0007., a factor that is strongly associated with sleep problems, via alteration in the circadian rhythm and sleep hormone metabolism 55. Canever JB, Cândido LM, Wagner KJP, Danielewicz AL, Avelar NCP. As diferentes tipologias do comportamento sedentário estão associadas ao histórico de problemas no sono em idosos comunitários? Cad Saúde Pública 2022; 38:e00156521.. Furthermore, confinement in one’s own home due to difficult access to streets and public places could reduce social interaction and increase stress levels, both associated with poor sleep quality 3232. Argyropoulous K, Damka P Argyropoulou A, Avramidis D, Jelastopulu E. Is polypharmacy risk factor for insomnia later in life? A cross-sectional study in Greece. EC Psychol Psychiatr 2020; 9:1-5..

In the present study, being concerned about falling due to damaged sidewalks was significantly associated with higher odds of all sleep problems. Corroborating our findings, Watanabe et al. 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398. showed that the non-depressive older Japanese adults who lived in neighborhoods with few steps or hills, which make it difficult to walk in the neighborhood, had a lower prevalence of poor sleep quality (prevalence ratio - PR = 0.75; 95%CI: 0.56; 0.99). These authors investigated only sleep quality and did not explore other types of sleep problems. The presence of defects in sidewalks is well-known to be a barrier to walking and physical exercise among older adults 3838. Prieto-Flores ME, Rosenberg MW. Moving around a large city in latin america: the mobility challenges faced by older adults with disabilities. Int J Environ Res Public Health 2021; 18:12984., which can result in reduced physical activity levels and, consequently, a decreased release of nocturnal melatonin 3939. Cardinali DP. Melatonin and healthy aging. Vitam Horm 2021; 115:67-88.. This hormone, which is already reduced during older adults’ sleep due to the aging process, is a chronobiotic that synchronizes the individual’s intrinsic biological rhythm. Therefore, when secreted at times other than the physiological one, melatonin can lead to increased daytime sleepiness and/or insomnia 4040. Arendt J, Skene DJ. Melatonin as a chronobiotic. Sleep Med Rev 2005; 9:25-39., and when decreased, it can result in poor sleep quality 4141. Vancampfort D, Stubbs B, Firth J, Hagemann N, Myin-Germeys I, Rintala A, et al. Sedentary behaviour and sleep problems among 42,489 community-dwelling adults in six low- and middle-income countries. J Sleep Res 2018; 27:e12714..

Participants who were concerned about having difficulties taking the bus, subway, or train were also more likely to have all sleep problems investigated. Difficulty accessing public transport can lead to restriction in social participation and, consequently, mobility problems and greater functional dependence 3838. Prieto-Flores ME, Rosenberg MW. Moving around a large city in latin america: the mobility challenges faced by older adults with disabilities. Int J Environ Res Public Health 2021; 18:12984.. Such consequences can generate sedentary behaviors and physical inactivity, which are strongly associated with sleep problems in community-dwelling older adults, as they directly influence the circadian rhythm 55. Canever JB, Cândido LM, Wagner KJP, Danielewicz AL, Avelar NCP. As diferentes tipologias do comportamento sedentário estão associadas ao histórico de problemas no sono em idosos comunitários? Cad Saúde Pública 2022; 38:e00156521.,66. Li J, Vitiello MV, Gooneratne NS. Sleep in normal aging. Sleep Med Clin 2018; 13:1-11..

Older adults concerned about having difficulties crossing the street were also more likely to report all sleep problems. The lack of crosswalks and reduced signaling can generate a feeling of insecurity when crossing the street due to the fear of being a victim of a traffic accident and, therefore, act as a barrier to the practice of physical activity, especially among older adults 4242. Lord S, Cloutier M-S, Garnier B, Christoforou Z. Crossing road intersections in old age - with or without risks? Perceptions of risk and crossing behaviours among the elderly. Transp Res Part F Traffic Psychol Behav 2018; 55:282-96.. As previously reported, the reduction in physical activity levels affects sleep via changes in hormone secretion and homeostasis of the sleep-wake cycle 66. Li J, Vitiello MV, Gooneratne NS. Sleep in normal aging. Sleep Med Clin 2018; 13:1-11.,3939. Cardinali DP. Melatonin and healthy aging. Vitam Horm 2021; 115:67-88.. According to Watanabe et al. 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398., environmental changes that increase walking opportunities and provide multiple destinations can improve older adults’ sleep quality by encouraging them to leave the house regularly and enabling an active lifestyle. Thus, being able to walk in the neighborhood environment not only allows older adults to increase their activity level but also to communicate more with their neighbors, which could improve the profile of circulating cortisol throughout the day, favoring better sleep quality 4343. Johnson DA, Simonelli G, Moore K, Billings M, Mujahid MS, Rueschman M, et al. The neighborhood social environment and objective measures of sleep in the multi-ethnic study of atherosclerosis. Sleep 2017; 40:zsw016..

Hearing the sound/noise of buses and cars was significantly associated with poor sleep quality, difficulty staying asleep, and waking up at dawn. A previous study also found an association between living in areas with traffic noise and sleep problems in Brazilian adults (OR = 1.08; 95%CI: 1.16; 5.90) 4444. Paiva KM, Cardoso MRA, Zannin PHT. Exposure to road traffic noise: annoyance, perception and associated factors among Brazil's adult population. Sci Total Environ 2019; 650:978-86.. According to the authors, sleep problems are one of the most harmful effects of noise exposure, as quality sleep is essential for daytime alertness, concentration, and good performance in daily tasks 4444. Paiva KM, Cardoso MRA, Zannin PHT. Exposure to road traffic noise: annoyance, perception and associated factors among Brazil's adult population. Sci Total Environ 2019; 650:978-86.. This aspect can be even more impactful in older adults’ lives, as their sleep is usually more superficial than that of adults due to physiological changes in sleep architecture, especially in the rhythm of the sleep-wake cycle 4545. Miner B, Kryger MH. Sleep in the aging population. Sleep Med Clin 2017; 12:31-8.. Therefore, these noises would tend to wake up older adults more easily than adults 4646. Kamel NS, Gammack JK. Insomnia in the elderly: cause, approach, and treatment. Am J Med 2006; 119:463-9.. In addition, high noise levels can lead to malaise and indisposition 4747. Amoatey P, Omidvarbona H, Baawain MS, Al-Mayahi A, Al-Mamun A, Al-Harthy I. Exposure assessment to road traffic noise levels and health effects in an arid urban area. Environ Sci Pollut Res 2020; 27:35051-64. and increased blood pressure 4848. Petri D, Licitra G, Vigotti MA, Fredianelli L. Effects of exposure to road, railway, airport and recreational noise on blood pressure and hypertension. Int J Environ Res Public Health 2021; 18:9145. and, consequently, cause awakening during the night, compromising older adults’ sleep quality. Other researchers claim that noise can act as an acute stressor that influences all sleep stages, especially rapid-eye-movement (REM) sleep 4949. Liu J, Ghastine L, Um P, Rovit E, Wu T. Environmental exposures and sleep outcomes: a review of evidence, potential mechanisms, and implications. Environ Res 2021; 196:110406.. This effect would be more acute in older adults, as the onset of their sleep is more difficult, and the total time and efficiency of their sleep are reduced due to the aging process 4646. Kamel NS, Gammack JK. Insomnia in the elderly: cause, approach, and treatment. Am J Med 2006; 119:463-9..

On the other hand, we observed, in general, that older adults who perceived the neighborhood environment as a good place to live, reported trusting most people in their neighborhood, and perceived that kids and younger people in their neighborhood treat adults with respect exhibited lower odds of having daytime sleepiness, primary insomnia complaints, and waking up at dawn. Corroborating our findings, previous studies have shown that living in neighborhoods with greater social cohesion (e.g., a feeling of belonging, conditions of mutual trust, shared values, and solidarity between neighbors) reduces the odds of complaints of sleep problems 1818. Watanabe M, Shobugawa Y, Tashiro A, Ota A, Suzuki T, Tsubokawa t, et al. Association between neighborhood environment and quality of sleep in older adult residents living in Japan: the JAGES 2010 Cross-sectional Study. Int J Environ Res Public Health 2020; 17:1398.,5050. DeSantis AS, Diez Roux AV, Moore K, Baron KG, Mujahid MS, Nieto FJ. Associations of neighborhood characteristics with sleep timing and quality: the Multi-Ethnic Study of Atherosclerosis. Sleep 2013; 36:1543-51.. In this sense, social cohesion acts as a protective factor because it favors the inhibition of the body’s stressor systems that negatively impact sleep through hypervigilance 1616. Okoye SM, Spira AP, Perrin NA, Schrack JA, Han H-R, Wanigatunga S, et al. Exterior housing conditions are associated with objective measures of poor sleep among low-income older adults with disabilities. Sleep Health 2021; 7:731-4.,5050. DeSantis AS, Diez Roux AV, Moore K, Baron KG, Mujahid MS, Nieto FJ. Associations of neighborhood characteristics with sleep timing and quality: the Multi-Ethnic Study of Atherosclerosis. Sleep 2013; 36:1543-51.. It is also important to point out that even if sleep homeostasis is reduced with senescence, a favorable social environment perceived by older adults, in which they feel comfortable performing their daily activities, can contribute to maintaining the adequate metabolism of hormones that are essential for the sleep-wake cycle, such as growth hormone, sex hormones, thyroid stimulant, cortisol, prolactin, and melatonin 66. Li J, Vitiello MV, Gooneratne NS. Sleep in normal aging. Sleep Med Clin 2018; 13:1-11..

Another finding of this study was that older adults willing to move presented higher odds of reporting poor sleep quality. Yang et al. 5151. Yang E, Ismail A, Kim Y, Erdogmus E, Boron J, Goldstein F, et al. Multidimensional environmental factors and sleep health for aging adults: a focused narrative review. Int J Environ Res Public Health 2022; 19:15481. found that housing insecurity is strongly associated with poor sleep quality and efficiency, as this problem creates significant psychological stress and cognitive load that impact homeostatic sleep regulation, through decreased sleep deprivation during wakefulness and increased deprivation during sleep 66. Li J, Vitiello MV, Gooneratne NS. Sleep in normal aging. Sleep Med Clin 2018; 13:1-11.. Furthermore, the desire to move may occur due to older adults’ low sense of belonging to the place where they live, which, in turn, can lead to depressive behaviors, social isolation, feelings of loneliness, and negative emotions. This scenario can trigger concerns and psychological stress that impair the regulation of hormonal systems, which act directly on older adults’ sleep quality 5252. Muhammad T, Meher T, Siddiqui LA. Mediation of the association between multi-morbidity and sleep problems by pain and depressive symptoms among older adults: evidence from the Longitudinal Aging Study in India, wave- 1. PLoS One 2023; 18:e0281500..

The strengths of this study include the large sample size and data from a nationally representative survey of the older Brazilian population. To our knowledge, this is the first study to analyze, at the national level, the association between self-perception of the neighborhood environment and different sleep problems in older Brazilian adults. Moreover, the present study analyzed several contextual factors, which are still little explored in studies conducted with populations from middle-high income countries, and their associations with different types of sleep problems. Despite these strengths, our findings should be interpreted with caution due to some limitations. Both sleep problems and the neighborhood’s physical and social environment characteristics were obtained subjectively; thus, the information is subject to memory, same-source, and social desirability biases. Moreover, we cannot rule out possible discrepancies between perceptions and real characteristics of the neighborhood. The models were not adjusted for race/skin color due to the strong correlation of this variable with education, which could result in overfitting. However, residual confounding is a possibility. Finally, the ELSI-Brazil’s instrument on neighborhood perception has not been validated in the Brazilian population. However, the instrument’s questions were adapted from other questions used in several studies on urban health.

Conclusion

Several characteristics of the neighborhood’s physical and social environment were independently associated with the sleep problems analyzed. In particular, environmental characteristics related to concerns with community mobility were more consistently associated with sleep problems in community-dwelling older Brazilian adults. The current results can potentially assist to assist public managers in creating urban planning policies aimed at improving neighborhood environments. In addition, our findings can help health professionals better understand the relationship between the neighborhood environment and sleep problems, which can contribute to implementing preventive and/or management strategies for the main sleep problems reported by this population.

Acknowledgments

The ELSI-Brazil was supported by the Brazilian Ministry of Health: Department of Science and Technology from the Secretariat of Science, Technology and Strategic Inputs - DECIT/SCTIE (grants: 404965/2012-1 and TED 28/2017) and Health Coordination of the Older Person in Primary Care, Department of Life Course from the Secretariat of Primary Health Care - COPID/DECIV/SAPS (grants: 20836, 22566, 23700, 25560, 25552, and 27510).

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Publication Dates

  • Publication in this collection
    29 Apr 2024
  • Date of issue
    2024

History

  • Received
    16 Aug 2023
  • Reviewed
    12 Dec 2023
  • Accepted
    15 Dec 2023
Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz Rio de Janeiro - RJ - Brazil
E-mail: cadernos@ensp.fiocruz.br