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socioeconomic status, urbanicity and risk behaviors in mexican youth an analysis of three cross-sectional surveys墨西哥青年社会经济地位、城市化程度和风险行为的分析三个横断面调查.pdf

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Gutiérrez and Atienzo BMC Public Health 2011, 11:900 /1471-2458/11/900 RESEARCH ARTICLE Open Access Socioeconomic status, urbanicity and risk behaviors in Mexican youth: an analysis of three cross-sectional surveys Juan Pablo Gutiérrez 1,2 and Erika E Atienzo3* Abstract Background: The relationship between urbanicity and adolescent health is a critical issue for which little empirical evidence has been reported. Although an association has been suggested, a dichotomous rural versus urban comparison may not succeed in identifying differences between adolescent contexts. This study aims to assess the influence of locality size on risk behaviors in a national sample of young Mexicans living in low-income households, while considering the moderating effect of socioeconomic status (SES). Methods: This is a secondary analysis of three national surveys of low-income households in Mexico in different settings: rural, semi-urban and urban areas. We analyzed risk behaviors in 15-21-year-olds and their potential relation to urbanicity. The risk behaviors explored were: tobacco and alcohol consumption, sexual initiation and condom use. The adolescents’ localities of residence were classified according to the number of inhabitants in each locality. We used a logistical model to identify an association between locality size and risk behaviors, including an interaction term with SES. Results: The final sample included 17,974 adolescents from 704 localities in Mexico. Locality size was associated with tobacco and alcohol consumption, showing a similar effect throughout all SES levels: the larger the size of the locality, the lower the risk of consuming tobacco or alcohol compared with rural settings. The effect of locality size on sexual behavior was more complex. The odds of adolescent condom use were higher in larger localit
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