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Salud Pública de México

Print version ISSN 0036-3634

Abstract

DURAN-ARENAS, Luis; GALLEGOS-CARRILLO, Katia; SALINAS-ESCUDERO, Guillermo  and  MARTINEZ-SALGADO, Homero. Towards a mexican normative standard for measurement of the Short Format 36 health-related quality of life instrument. Salud pública Méx [online]. 2004, vol.46, n.4, pp. 306-315. ISSN 0036-3634.  http://dx.doi.org/10.1590/S0036-36342004000400005.

OBJECTIVE: To present the results of the application of the short format 36 instrument (SF-36) in the Mexican states of Sonora and Oaxaca. The levels of quality of life were compared with those from Canada and the United States. MATERIAL AND METHODS: The data were obtained using a survey on health service access, usage, and quality. The SF-36 is composed of 36 questions, which represent eight different domains on the health-related quality of life. These domains are used to estimate the physical and mental components of health. Data analysis was performed to calculate the average scores for each domain for the total sample, by gender and age groups in each state. The regional differences were assessed by the difference of means. RESULTS: The total response was 98.5% of the 4200 selected households. The percent response values were similar between the two states. A total of 5961 subjects older than 25 years of age completed the questionnaire. Males scored higher than females in all domains and in both components. Regardless of sex, the highest variation was observed in adults up to 64 years of age mainly in three domains: overall health, social function, and mental health; in the 65-74 year age group occurred mostly in social function and mental health; and in adults older than 75 years only in mental health. The young adult age group (25 to 44 years) showed variation in a greater number of domains, while women exhibited more variation in the "extreme" age groups, 25 to 34 years and 75 years and older. The mean scores in our sample were higher than those found in Canada and the United States in five domains and in the two summary components. Canada showed higher scores in the other three domains (overall health, social function, and mental health). CONCLUSIONS: SF-36 data are not available at the national level; hence, the authors recommend that their study results may serve as the normative reference for SF-36 in Mexico. Researchers using the SF-36 could compare their results with our reference, adjusted by gender and age in population-based studies. Considering that the study regions have contrasting social and economic characteristics, the data from the more developed state, Sonora, may be used as the normative standard. Data from Oaxaca would be used as the reference for less-developed states.

Keywords : quality of life related to health; normative values; regional variations; Mexico.

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