Overweight and obesity and associated factors in adults in a poor urban area of Northeastern Brazil

Silvia Pereira da Silva de Carvalho Melo Eduarda Ângela Pessoa Cesse Pedro Israel Cabral de Lira Lisianny Camilla Cocri do Nascimento Ferreira Anete Rissin Malaquias Batista FilhoAbout the authors

ABSTRACT:

Introduction:

The changes that occurred in the health/disease process, especially in the field of nutrition, corroborate the replacement of nutritional deficiencies with the pandemic emergency of overweight (overweight/obesity).

Objective:

To analyze the prevalence and factors associated with overweight in adults living in a poor urban area in Recife, Northeast Brazil.

Methods:

This is a cross-sectional study with a sample of 644 adults aged 20-59 years. Possible associations of overweight with demographic, socioeconomic, behavioral and morbidity factors were analyzed through Poisson Regression, considering as statistically significant those with p < 0.05.

Results:

The prevalence of overweight was 70.3%, being lower in the age range of 20-29 years, greater in the range of 30-39 years and stabilizing in the others. In the final multivariate model, it was observed that the age group, economic class, diabetes mellitus and high blood pressure were directly associated with overweight, while bean consumption showed an inverse association. The high prevalence of overweight found indicates that poor communities are already included in the nutritional transition process that is in course in country.

Conclusion:

The significant result of overweight found at this poor urban area imposes the need to include this problem as a public health priority in these communities.

Keywords:
Overweight; Obesity; Adult; Poverty

INTRODUCTION

The great changes that occurred in the health/disease process from the second half of the twentieth century began to present a very peculiar configuration in the field of nutrition, typified by the overlapping of global and specific nutritional deficiencies due to the epidemic or pandemic emergence of overweight and obesity11. Schmidt MI, Duncan BB, Silva GA, Menezes AM, Monteiro CA, Barreto SM, et al. Doenças crônicas não transmissíveis no Brasil: carga e desafios atuais. Lancet 2011; 377(9781): 1949-161. http://doi.org/10.1016/S0140-6736(11)60135-9
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Overweight and obesity are characterized by the accumulation of body fat, exceeding the acceptable standards of anthropometric normality in different degrees and belonging to the group of chronic non-communicable diseases (CNCDs)22. Oliveira LPM, Assis AMO, Silva MCM, Santana MLP, Santos NS, Pinheiro SMC, et al. Fatores associados a excesso de peso e concentração de gordura abdominal em adultos na cidade de Salvador, Bahia, Brasil. Cad Saúde Pública 2009; 25(3): 570-82. http://dx.doi.org/10.1590/S0102-311X2009000300012
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. They act as important risk factors for the morbidity and mortality of adult populations, being associated with 63% of the global total of deaths caused by the CNCD. Of that amount, 78% of mortality occurs in middle and low income countries33. Goulart FAA. Doenças crônicas não transmissíveis: estratégias de controle e desafios para os sistemas de saúde. Brasília: Organização Pan-Americana da Saúde; 2011..

The worldwide prevalence of overweight/obesity has shown a rapid and progressive increase in the last decades. Currently, 2.1 billion adults have this condition, which represents almost 30% of the world population. It should also be noted that, from 1980 to 2013, overweight increased by 27.5% among adults44. Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980-2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet 2014; 384(9945): 766-81. https://doi.org/10.1016/S0140-6736(14)60460-8
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In our country, more than half of the adult population - that is, 56.9% - is overweight55. Instituto Brasileiro de Geografia e Estatística (IBGE). Pesquisa Nacional de Saúde 2013: ciclos de vida: Brasil e grandes regiões. Rio de Janeiro: IBGE; 2015.. A study carried out in adults living in deprived urban areas of Maceió found 41.2% had this problem66. Barbosa JM, Cabral PC, Lira PIC, Florêncio TMMT. Fatores socioeconômicos associados ao excesso de peso em população de baixa renda do nordeste brasileiro. Arch Latino Americanos Nutrición 2009; 59(1): 22-9., and in Pernambuco, according to the III State Survey of Health and Nutrition (2006), 51.5% of adults were in this condition77. Pinho CPB, Diniz AS, Arruda IKG, Lira PIC, Sequeira LAS, Gonçalves FCLSP, et al. Excesso de peso em adultos do Estado de Pernambuco, Brasil: magnitude e fatores associados. Cad Saúde Pública 2011; 27(12): 2340-50. http://dx.doi.org/10.1590/S0102-311X2011001200006
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. It is a pandemic process that goes beyond geopolitical boundaries, economic and cultural blocks and social strata, with the surprising observation that nowadays, unlike the past, it is the poorest strata in rich or developing countries that constitute the most exposed segments88. World Health Organization (WHO). Global nutrition policy review: What does it take to scale up nutrition action? Genebra: WHO; 2013.,99. Batista Filho M, Rissin A. A transição nutricional no Brasil: tendências regionais e temporais. Cad Saúde Pública 2003; 19(Supl. 1): S181-91. http://dx.doi.org/10.1590/S0102-311X2003000700019
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Overweight and obesity have multifactorial causes and result from a complex interaction of dietary factors, genetic predisposition and human behavior1010. Sá NNB, Moura EC. Excesso de peso: determinantes sociodemográficos e comportamentais em adultos, Brasil, 2008. Cad Saúde Pública 2011; 27(7): 1380-92. http://dx.doi.org/10.1590/S0102-311X2011000700013
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,1111. Brasil. Ministério da Saúde (MS). Perspectivas e desafios no cuidado às pessoas com obesidade no SUS: resultados do Laboratório de Inovação no manejo da obesidade nas Redes de Atenção à Saúde. Brasília: MS; 2014.. Along with diet and physical inactivity, we must also assesse working conditions, housing, supply networks and other determinants that may be included in the causal models of this problem1111. Brasil. Ministério da Saúde (MS). Perspectivas e desafios no cuidado às pessoas com obesidade no SUS: resultados do Laboratório de Inovação no manejo da obesidade nas Redes de Atenção à Saúde. Brasília: MS; 2014..

Studies that assess how excess weight behaves in populations under recognizedly precarious conditions, especially in deprived urban areas (favelas), are still scarce and isolated in Brazil, particularly in the Northeast Region66. Barbosa JM, Cabral PC, Lira PIC, Florêncio TMMT. Fatores socioeconômicos associados ao excesso de peso em população de baixa renda do nordeste brasileiro. Arch Latino Americanos Nutrición 2009; 59(1): 22-9.. It is worth considering, however, that 11 million people live in slum areas in the country, representing about 5% of the population66. Barbosa JM, Cabral PC, Lira PIC, Florêncio TMMT. Fatores socioeconômicos associados ao excesso de peso em população de baixa renda do nordeste brasileiro. Arch Latino Americanos Nutrición 2009; 59(1): 22-9.,1212. Instituto Brasileiro de Geografia e Estatística (IBGE). Aglomerados subnormais. Censo Demográfico. Rio de Janeiro: IBGE ; 2010..

Characterized as communities with no land ownership, poor urban areas usually have an unstable work space, low individual and family income, informal occupations, unhealthy housing, poor sanitation conditions, lack or insufficiency of health, education, and public security services. In this configuration, what would the nutritional status of the population be like in an urban scenario with major restrictions on goods and services?

In view of the social, structural, environmental, demographic and economic context that permeates the epidemiological context of overweight/obesity and its impact on the population’s health/disease process, especially in deprived urban areas, this study is justified, whose objective was to analyze the prevalence and factors associated with excess weight in adults aged 20-59 years living in a poor urban area in Recife, Northeastern Brazil.

METHODS

This is a descriptive and analytical cross-sectional study, based on data from the research “Health, nutrition and assistance services in a slum population in Recife: a baseline study”, developed by Instituto de Medicina Integral Professor Fernando Figueira (IMIP) in partnership with the Nutrition Department of Universidade Federal de Pernambuco (UFPE) and the Recife City Hall. Data collection was home based and took place between June and December 2014, in a poor urban area known as the Coelhos community, located in the Boa Vista neighborhood, in the municipality of Recife, capital of the State of Pernambuco.

To calculate the sample, a group of 3,816 adults aged 20 to 59 years was used as reference. As was estimated by the Primary Care Information System (SIAB) in Recife, there is a prevalence of 51.5% of overweight and obesity of adults in this age group in the Recife Metropolitan Region of Pernambuco77. Pinho CPB, Diniz AS, Arruda IKG, Lira PIC, Sequeira LAS, Gonçalves FCLSP, et al. Excesso de peso em adultos do Estado de Pernambuco, Brasil: magnitude e fatores associados. Cad Saúde Pública 2011; 27(12): 2340-50. http://dx.doi.org/10.1590/S0102-311X2011001200006
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. An estimate error of 4% and a confidence interval of 95% were assumed, and 10% was added to compensate for possible losses, cases of non-response or questionnaires eventually invalidated by inconsistencies, thus obtaining an initial sample of 570 participants. The final sample included a total of 644 adults. The number of observations assessed here constitutes a subset of the representative sample of people over 20 years old, calculated to represent the universe of adults in the Coelhos community.

Sampling was probabilistic, and the adults were selected by simple random drawing, without substitution. Pregnant women, individuals with congenital or acquired physical limitations which made anthropometric measurements impossible to measure, and cases with visible edema or psychic disorders that hindered collaboration were excluded.

The relationship between weight and height was obtained based on the body mass index (BMI). According to WHO recommendations1313. World Health Organization (WHO). Physical status: the use and interpretation of anthropometry. Genebra: WHO ; 1995., adults were classified as: weight deficit (< 18.5 kg/m2), eutrophy (≥ 18.5 e < 25 kg/m2), overweight (≥ 25 e < 30 kg/m2), obesity (≥ 30 kg/m2) and severe obesity (≥ 40 kg/m2). For this study, the response variable was represented by overweight (overweight/obesity), considering adults with a BMI ≥ 25 kg/m2.

Weight was measured on a digital scale, Seca® 876, with a capacity of up to 250 kg and a scale of 100 g, with individuals barefoot, wearing minimal clothing and without any objects in their pockets, hands or head. For height measurement, a portable millimeter stadiometer, brand Alturexata LTDA., with precision of up to (1 mm) was used. The volunteers were in an upright position, barefoot, with upper limbs dangling along the body. In order to ensure accuracy, measurements were taken in duplicates and, when the difference between them exceeded 0.5 cm for height and 100 g for weight, the two measurements were repeated and noted with closer values, and then the average of these measures was used.

The independent variables were presented categorically, classified as:

  • demographic: sex (male and female) and age group (20-29, 30-39, 40-49 and 50-59);

  • socioeconomic: economic class, assessed based on the criteria of the Brazilian Association of Research Companies (ABEP)1414. Associação Brasileira de Empresas de Pesquisa. Critério de classificação econômica Brasil. São Paulo: Associação Brasileira de Empresas de Pesquisa; 2014., defined based on a points system that considers the possession of goods and the education level of the head of the family (B1/B2, C1/C2 and D/E), schooling (illiterate/incomplete elementary school, complete elementary school/incomplete primary school, complete primary school/incomplete secondary school and complete secondary school/complete higher education/incomplete higher education), race/ethnicity, which was self-reported (white, black, brown and others), occupation ((not working, unemployed, sporadic work, social benefits, employed/self-employed), housing - wall (brick/masonry and others), number of rooms (> 4 and ≤ 4), basic sanitation - garbage disposal (public collection and others), waste disposal and water supply (general network and others);

  • behavioral: weekly food consumption - beans, vegetables, fruits, soda or artificial juice, (1-2 times a week or never, 3-4 times and 5-7 times), meats with excess fat (no and yes) and physical activity (sufficiently active and insufficiently active);

  • diabetes and high blood pressure (no/yes).

Food consumption was assessed using the weekly consumption questionnaire used by the Ministry of Health1515. Brasil. Ministério da Saúde (MS). Secretaria de Vigilância em Saúde. Departamento de Vigilância de Doenças e Agravos Não Transmissíveis e Promoção da Saúde. Vigitel Brasil 2013: Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico. Brasília: MS ; 2014.. To determine the level of physical activity, the International Physical Activity Questionnaire (IPAQ) was used, in its short version1616. Matsudo S, Araújo T, Matsudo V, Andrade D, Andrade E, Oliveira LC, et al. Questionário Internacional de Atividade Fisica (IPAQ): Estudo de validade e reprodutibilidade no Brasil. Atividade Física e Saúde 2001; 6(2): 5-18. https://doi.org/10.12820/rbafs.v.6n2p5-18
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. This instrument measures the frequency and duration of moderate, vigorous physical activities and walks performed in the last week for at least 10 continuous minutes, including standardized exercises, sports, occupational and recreational physical activities performed at home, in free time, as a means of transportation and at leisure.

The criteria established by IPAQ refer to four categories of the level of physical activity: very active, active, irregularly active and sedentary. For analysis purposes, a these variables were re-categorized into:

  • “sufficiently active” (very active + active), applied to people who reported practicing vigorous activity with a frequency greater than or equal to three times a week for 20 minutes or more, or who practiced moderate activity, or walking with a frequency greater than or equal to five times a week for at least 30 minutes, or any activity that added up was equivalent to a frequency greater than or equal to five times a week and greater than or equal to 150 minutes a week (walking + moderate activity + vigorous activity);

  • “insufficiently active” (irregularly active + sedentary), people who do not fit the aforementioned criteria.

Regarding morbidities, the diagnosis of diabetes was performed by biochemical examination, with individuals with blood glucose ≥ 126 mg/dL or with a report of use of a hypoglycemic agent being considered “cases”1717. American Diabetes Association. Standards of Medical Care in Diabetes. Diabetes Care 2013; 36(Supl. 1): S11-66. https://doi.org/10.2337/dc13-S011
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. Blood pressure was measured according to standardized procedures1818. Malachias MVB, Souza WKSB, Plavnik FL, Rodrigues CIS, Brandão AA, Neves MFT, et al. VII Diretriz Brasileiras de Hipertensão. Arq Bras Cardiol 2016; 107 (3 Supl. 3): 1-83. http://dx.doi.org/10.5935/abc.20160153
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. Two measurements were taken at different times (interval of 15 minutes), and adults with systolic blood pressure ≥ 140 mmHg, and/or with diastolic blood pressure ≥ 90 mmHg, or with reports of use of anti-hypertensive agents.

Initially, descriptive analyzes were performed in order to characterize the frequency distribution of the variables under study. Subsequently, bivariate analyzes were performed using simple Poisson regression, to show possible associations with excess weight with the independent variables. In the adjusted model, the criterion for inclusion of the variables was the association in the crude analysis with excess weight, with a value of p < 0.20. The variables with p < 0.05, obtained through multivariate Poisson regression, with robust adjustment of the standard error, remained in the final model. The results were expressed by prevalence ratio (PR) and 95%CI. Statistical analyzes were performed using the SPSS software, version 13.0 (SPSS Inc., Chicago) and Stata, version 13.0 (StataCorp., College Station, United States).

This study was approved by the IMIP Research Ethics Committee, protocol No. 4017-14, in accordance with the requirements of CNS Resolution No. 466/12. All respondents were informed about voluntary participation in the research and signed the Informed Consent.

RESULTS

In the final sample of the present study, there were a total of 644 adults, however, there were differences in sample values in some variables, due to the loss of responses for incomplete questionnaires and/or inconsistent data.

The nutritional status of the studied population is shown in Figure 1. The prevalence of overweight and obesity were similar, around 35%, exceeding the prevalence of eutrophy. Furthermore, it is detailed that 3.4% of the total obese people had severe obesity, which is practically twice the frequency of cases of weight deficit. The joint frequency of overweight/obesity, representing excess weight, was 70.3%.

Figure 1.
Nutritional status of adults (20-59 years) in a poor urban area (Coelhos community). Recife, 2014.

The variables sex, age group, economic class, race/ethnicity, occupation, number of rooms, water supply (Table 1), weekly consumption of beans, consumption of meat with excess fat, high blood pressure and diabetes (Table 2) showed an significant association with excess weight (p < 0.20).

Table 1.
Prevalence and crude prevalence ratio (PR) of overweight in adults (20-59 years) in an poor urban area, according to demographic and socioeconomic variables. Recife, 2014.
Table 2.
Prevalence and crude prevalence ratio (PR) of overweight in adults (20-59 years) in a poor urban area, according to behavioral variables and morbidities. Recife, 2014.

The PRs adjusted through Poisson’s multivariate regression analysis showed that categories C1/C2 and B1/B2 presented an association with excess weight, in relation to the reference category (D/E), thus revealing that the higher the class, the the higher the prevalence of overweight. The 30-39 years and 40-49 years age groups also showed an association with the outcome, in relation to the reference category (20-29 years), that is, as the age group increases, the prevalence of the problem was higher in relation to the reference category. The weekly frequency of bean consumption (≤ 2 times/week and never) showed an association with excess weight, in relation to the reference category (5-7 times/week), the lower the weekly frequency of bean consumption, the greater the prevalence of overweight. The referred morbidities diabetes and high blood pressure were also associated with the outcome, those who reported these morbidities had a higher frequency of excess when compared to those who did not (reference category). Such variables remained significantly associated with the outcome p < 0.05 (Table 3).

Table 3.
Adjusted analysis of excess weight in adults (20-59 years) in a poor urban area. Recife, 2014.

DISCUSSION

The high prevalence of excess weight found presupposes that poor or low-income communities are already included in the nutritional transition process. This result would be unusual in an urban environment of marked poverty, since a few years ago the forecast would be high frequencies of weight deficit99. Batista Filho M, Rissin A. A transição nutricional no Brasil: tendências regionais e temporais. Cad Saúde Pública 2003; 19(Supl. 1): S181-91. http://dx.doi.org/10.1590/S0102-311X2003000700019
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The most current study that can be taken as a reference was carried out in 2009, in a sample of 3,214 adults from deprived urban areas of Maceió (AL)66. Barbosa JM, Cabral PC, Lira PIC, Florêncio TMMT. Fatores socioeconômicos associados ao excesso de peso em população de baixa renda do nordeste brasileiro. Arch Latino Americanos Nutrición 2009; 59(1): 22-9.. This research revealed that 41.2% of adults were overweight/obese, while our study found a prevalence of 70.3%, well above the value found in Brazil in 2013 (56.9%)55. Instituto Brasileiro de Geografia e Estatística (IBGE). Pesquisa Nacional de Saúde 2013: ciclos de vida: Brasil e grandes regiões. Rio de Janeiro: IBGE; 2015.. On an international level, practically identical prevalence rates to those of the Coelhos community (around 73%) were found in studies with poor populations in the United States1919. Smith TM, Colón-Ramos U, Pinard CA, Yaroch AL. Household food insecurity as a determinant of overweight and obesity among low-income Hispanic subgroups: Data from the 2011-2012 California Health Interview Survey. Appetite 2016; 97: 37-42. http://doi.org/10.1016/j.appet.2015.11.009
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and Afghanistan2020. Kahan D. Prevalence and correlates of adult overweight in the Muslim world: analysis of 46 countries. Clin Obes 2015; 5(2): 87-98. http://doi.org/10.1111/cob.12089
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.

The much higher prevalence obtained in this assessment could result in three possible interpretations. As excess weight represents a rapidly progressive epidemic in Brazil, it is acceptable that a marked difference in five years may result in the very rapid pace of this problem’s increase. The second version would accept that the situation of adults in the analyzed area may be very different from that found in Maceió, in a larger sample distributed over several slum areas. A third conjecture would be that favela populations start to reproduce, and even exceed, a generalized pattern for the whole country, as part of the epidemiological homogenization expressed as the most updated scenario of the Brazilian population’s nutritional status. This may represent the most consistent interpretation, although without the support of sequential, up-to-date and representative data on populations living in deprived urban areas.

In the Coelhos community, there was a statistically significant association between overweight/obesity and the age group, highlighting a higher prevalence among adults aged 30 to 39 years, and then stabilizing. In Brazil44. Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. Global, regional, and national prevalence of overweight and obesity in children and adults during 1980-2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet 2014; 384(9945): 766-81. https://doi.org/10.1016/S0140-6736(14)60460-8
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, a study on the nutritional status of the beneficiaries of the Bolsa Família Program2121. Lima FEL, Rabito EI, Dias MRMG. Estado nutricional de população adulta beneficiária do Programa Bolsa Família no município de Curitiba, PR. Rev Bras Epidemiol 2011; 14(2): 198-206. http://dx.doi.org/10.1590/S1415-790X2011000200002
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and on low-income women in Rio de Janeiro2222. Lins APM, Sichieri R, Coutinho WF, Ramos EG, Peixoto MVM, Fonseca VM. Alimentação saudável, escolaridade e excesso de peso entre mulheres de baixa renda. Ciênc Saúde Coletiva 2013; 18(2): 357-66. http://dx.doi.org/10.1590/S1413-81232013000200007
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also found an association between the problem and the age group, showing a higher prevalence of overweight among adults aged 40 years or over and 50-59 years, respectively. This finding may be related to the decrease in the level of physical activity2323. Hallal PC, Andersen LB, Bull FC, Guthold R, Haskell W, Ekelund U. Global physical activity levels: surveillance progress, pitfalls, and prospects. Lancet 2012; 380(9838): 247-57. http://dx.doi.org/10.1016/S0140-6736(12)60646-1
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, as well as basal metabolism and hormonal changes that happen with the aging process, which lead the body to store more fat2424. Flegal KM, Carroll MD, Bryan KK, Ogden CL. Prevalence of obesity and trends in the distribution of body mass index among US adults, 1999-2010. Jama 2012; 307(5): 491-7. http://dx.doi.org/10.1001/jama.2012.39
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. Internationally, research carried out in the district of Kalutara, in Asia, found a higher prevalence of overweight in low-income adults, from the age of 40, with a reduction at the age of 502525. Silva AP, Silva SHP, Haniffa R, Liyanage IK, Jayasinghe KSA, Katulanda P, et al. A cross sectional survey on social, cultural and economic determinants of obesity in a low middle income setting. Int J Equity Health 2015; 14: 6. https://dx.doi.org/10.1186%2Fs12939-015-0140-8
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. It is likely that the differences in life ecosystems specific to each low-income population may justify these mismatches in the results.

There was no association between overweight and education. According to VIGITEL2626. Brasil. Ministério da Saúde (MS). Secretaria de Vigilância em Saúde. Departamento de Vigilância de Doenças e Agravos Não Transmissíveis e Promoção da Saúde. Vigitel Brasil 2013: Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico. Brasília: MS ; 2017., the frequency of overweight tends to decrease with increasing schooling, however we did not observe this in this study, since the prevalence of overweight was similar in different age groups, regardless of the level of education. This is probably because the low socioeconomic condition and the social context in which the study population is inserted ends up favoring the acquisition of cheaper and caloric foods.

In the higher classes of the sample, the highest prevalence of overweight was identified (B1/B2). However, this represented only 5.8% of the sample. The size of the study sample may have influenced this result, since a higher prevalence of the problem was expected in the poorest classes. However, it should be considered that the population studied is a poor community and, therefore, a homogeneous population, so the expectations may have been found with a larger sample, such as the case of the studies conducted in Maceió66. Barbosa JM, Cabral PC, Lira PIC, Florêncio TMMT. Fatores socioeconômicos associados ao excesso de peso em população de baixa renda do nordeste brasileiro. Arch Latino Americanos Nutrición 2009; 59(1): 22-9. and in Ceará2727. Vasconcelos HCA, Marinho NBP, Araújo MFM, Freitas RWJF, Almeida PC, Damasceno MMC. Avaliação do excesso de peso entre adultos da Estratégia Saúde da Família. Rev Enferm 2012; 20(5): 573-8., in which a higher prevalence of overweight was observed among adults with lower income.

A higher frequency of the problem was found among the black race/ethnicity and among adults without an occupation, although no significant association was observed. It is important to emphasize that being overweight has shifted its focus of risk to the most socially disadvantaged ethnicities, such as blacks and browns or other groups close to the condition of poverty, such as rural families and lower income strata2828. Costa EC, Lira PIC, Oliveira JF, Menezes RCE, Tavares FCLP, Batista Filho M. Evolução do excesso de peso e fatores associados em mulheres de 10 a 49 anos em Pernambuco, Nordeste, Brasil. Rev Nutr 2014; 27(5): 513-24. http://dx.doi.org/10.1590/1415-52732014000500001
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,2929. Linhares RS, Horta BL, Gigante DP, Dias-da-Costa JS, Olinto MTA. Distribuição de obesidade geral e abdominal em adultos de uma cidade no Sul do Brasil. Cad Saúde Pública 2012; 28(3): 438-47. http://dx.doi.org/10.1590/S0102-311X2012000300004
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.

In the present study, approximately 70% of the population consumes beans five or more times a week. According to the Family Budget Survey, in 2008 and 2009, beans are still among the most consumed foods by the Brazilian population (≅ 70%)3030. Jaime PC, Stopa SR, Oliveira TP, Vieira ML, Szwarcwald CL, Malta DC. Prevalência e distribuição sociodemográfica de marcadores de alimentação saudável, Pesquisa Nacional de Saúde, Brasil 2013. Epidemiol Serv Saúde 2015; 24(2): 267-76. http://dx.doi.org/10.5123/S1679-49742015000200009
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. However, the low weekly consumption of beans (≤ 2 times) was shown to be associated with excess weight in this study, corroborating the study carried out in Belém (PA) on the consumption of beans in adults3131. Silva SA, Santos PNS, Moura EC. Associação entre excesso de peso e consumo de feijão em adultos. Rev Nutr 2010; 23(2): 239-50. http://dx.doi.org/10.1590/S1415-52732010000200007
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, which may indicate a higher consumption of ultra-processed foods, in detriment to healthy foods such as beans. Furthermore, no associations were observed with other food consumption variables.

There was no association between the level of physical activity and the prevalence of overweight. The coexistence of 70.2% of sufficiently active individuals and approximately 70% of overweight/obesity are apparently conflicting results; similar findings were also observed in Pernambuco77. Pinho CPB, Diniz AS, Arruda IKG, Lira PIC, Sequeira LAS, Gonçalves FCLSP, et al. Excesso de peso em adultos do Estado de Pernambuco, Brasil: magnitude e fatores associados. Cad Saúde Pública 2011; 27(12): 2340-50. http://dx.doi.org/10.1590/S0102-311X2011001200006
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. The high prevalence of active adults can be justified by the fact that the measurement of physical activity was performed by an instrument that considers activities performed in leisure, commuting, domestic and occupational activities, as well as by the socioeconomic condition of the population, which causes active commuting, occupational tasks and domestic activities to be the predominant type of physical activity, to the detriment of physical activity performed during leisure time, which is more common in developed countries3232. Bauman AE, Reis RS, Sallis JF, Wells JC, Loos RJ, Martin BW. Correlates of physical activity: why are some people physically active and others not? Lancet 2012; 380(9838): 258-71. https://doi.org/10.1016/S0140-6736(12)60735-1
https://doi.org/https://doi.org/10.1016/...
,3333. Macniven R, Bauman A, Abouzeid M. A review of population-based prevalence studies of physical activity in adults in the Asia-Pacific region. BMC Public Health 2012; 12: 41. https://doi.org/10.1186/1471-2458-12-41
https://doi.org/https://doi.org/10.1186/...
.

As expected, according to what other studies show, high blood pressure and diabetes were associated with overweight/obesity3434. Gigante DP, Moura EC, Sardinha LM. Prevalência de excesso de peso e obesidade e fatores associados, Brasil, 2006. Rev Saúde Pública2009; 43(Supl. 2): 83-9. http://dx.doi.org/10.1590/S0034-89102009000900011
https://doi.org/http://dx.doi.org/10.159...
,3535. Cristóvão MF, Sato AP, Fujimori E. Excesso de peso e obesidade abdominal em mulheres atendidas em Unidade da Estratégia Saúde da Família. Rev Esc Enferm USP 2011; 45(N. Esp. 2): 1667-72. http://dx.doi.org/10.1590/S0080-62342011000800005
https://doi.org/http://dx.doi.org/10.159...
,3636. Flor LS, Campos MR, Oliveira AF, Schramm JMA. Carga de diabetes no Brasil: fração atribuível ao sobrepeso, obesidade e excesso de peso. Rev Saúde Pública 2015; 49: 1-11. http://dx.doi.org/10.1590/S0034-8910.2015049005571
https://doi.org/http://dx.doi.org/10.159...
. It is a trilogy of comorbidities (high blood pressure, type II diabetes and overweight/obesity) that are commonly observed together.

The cross-sectional design stands out as a limitation of the study, as it constitutes a limitation in the analysis of the association between the associated variables and the outcome, due to the impossibility of inferring a causal relationship, disregarding the before/after relationship which, due to formal logic, must condition the relationship.

The fact that the study was carried out in a poor community is considered to be a positive point, considering that few studies are still carried out in these communities, and the knowledge of the health situation of poor populations is important for planning interventions.

CONCLUSION

The 70% prevalence of overweight/obesity in a poor area of Recife is well above the results identified in other urban populations with similar characteristics and even much higher in representative samples from Brazil. The high prevalence of the problem, standing at around 30% above the frequencies found in studies published in the country after 2003 implies that the population analyzed is included in the rapid process of nutritional transition that the country has experienced in the last 40 years.

From the analytical point of view, of the 22 groups of variables investigated, age group, economic class, weekly bean consumption, diabetes and high blood pressure, were the variables that made up the final model, adjusted to define the risks associated with overweight.

Conclusively, the high prevalence of overweight/obesity detected in the studied underprivileged urban area imposes the need to include this problem as a public health priority in these communities. Furthermore, it imposes the recommendation to expand similar studies and also a qualitative approach to other similar communities that are spread across the national territory, in order to get a glimpse of a still somewhat unknown situation and to signal priority interventions to them.

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  • Financial support: Ministério de Ciência e Tecnologia/Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE), APQ-2136-4.06/12

Publication Dates

  • Publication in this collection
    18 May 2020
  • Date of issue
    2020

History

  • Received
    15 Aug 2018
  • Reviewed
    19 Mar 2019
  • Accepted
    20 Mar 2019
Associação Brasileira de Pós -Graduação em Saúde Coletiva São Paulo - SP - Brazil
E-mail: revbrepi@usp.br