Objective: the HYDY (HYpertension and Diabetes in Yemen) study was designed also to explore the prevalence and correlates of central obesity among Yemeni children and adolescents aged 6 to 19 years. Design and methods: data were collected in 2008 including 1550 females and 1564 males at home in rural as well urban areas in 3 different geographic areas (highlands - capital - Sana'a; inland - governorate of Taizz; and coast - governorates of Al Hudaydah and Hadramaut),. Three definitions of central obesity were considered: - age- and gender-specific waist circumference (WC) percentile >= 90th (WC-based); - waist to height ratio (WHtR) >= 0.5 (WHtR- based); - or both WC percentile >= 90th and WHtR >= 0.5 (combined). Multivariate logistic regression was used to identify differences in predictors for the three central obesity definitions with adjustment for confounding variables including age (years), gender, years of school education, urban vs. rural residency and sedentary vs. active lifestyle. Results are expressed as adjusted Odd Ratio with 95% confidence interval (CI). Test of hypothesis was done at significance level 0.05 two sided. SPSS software, version 19.0 (SPSS Inc. Chicago IL, United States, 2010) was used for statistical analyzes. Results: Prevalence of central obesity largely varied according to the definition used: - 10.9% for WC-based definition - 18.3% for WHtR-based definition - 8.6% when considering combined criteria By gender abdominal obesity prevalence (% and 95%CI) are presented in Table I. Results of adjusted logistic regression analysis (OR and 95% Cl) are reported in the Table II. Irrespective of the definition used, central obesity was less prevalent in rural than in urban areas, and more prevalent in children with sedentary lifestyle. Differences by gender were evident only when considering a cut-off value which is independent from the Yemeni population (WHtR >=0.5). A minor association was observed between years of school education and WC >= 90th. Conclusions: HYDY data show a large discrepancy of central obesity prevalence among Yemeni children probably because the country is still in an early stage of the nutritional transition and there are population segments which are affected by malnutrition. Prevalence of central obesity in Yemeni children is low, being associated with urbanization and sedentary lifestyle. The importance of changes observed at early adolescence among girls living in urban areas, might be relevant for future National programs aimed at promoting physical activity and control of central obesity in women.
Prevalence and correlate s of central obesity among yemeni children And adolescents aged 6 to 19 years
L Massetti;
2013
Abstract
Objective: the HYDY (HYpertension and Diabetes in Yemen) study was designed also to explore the prevalence and correlates of central obesity among Yemeni children and adolescents aged 6 to 19 years. Design and methods: data were collected in 2008 including 1550 females and 1564 males at home in rural as well urban areas in 3 different geographic areas (highlands - capital - Sana'a; inland - governorate of Taizz; and coast - governorates of Al Hudaydah and Hadramaut),. Three definitions of central obesity were considered: - age- and gender-specific waist circumference (WC) percentile >= 90th (WC-based); - waist to height ratio (WHtR) >= 0.5 (WHtR- based); - or both WC percentile >= 90th and WHtR >= 0.5 (combined). Multivariate logistic regression was used to identify differences in predictors for the three central obesity definitions with adjustment for confounding variables including age (years), gender, years of school education, urban vs. rural residency and sedentary vs. active lifestyle. Results are expressed as adjusted Odd Ratio with 95% confidence interval (CI). Test of hypothesis was done at significance level 0.05 two sided. SPSS software, version 19.0 (SPSS Inc. Chicago IL, United States, 2010) was used for statistical analyzes. Results: Prevalence of central obesity largely varied according to the definition used: - 10.9% for WC-based definition - 18.3% for WHtR-based definition - 8.6% when considering combined criteria By gender abdominal obesity prevalence (% and 95%CI) are presented in Table I. Results of adjusted logistic regression analysis (OR and 95% Cl) are reported in the Table II. Irrespective of the definition used, central obesity was less prevalent in rural than in urban areas, and more prevalent in children with sedentary lifestyle. Differences by gender were evident only when considering a cut-off value which is independent from the Yemeni population (WHtR >=0.5). A minor association was observed between years of school education and WC >= 90th. Conclusions: HYDY data show a large discrepancy of central obesity prevalence among Yemeni children probably because the country is still in an early stage of the nutritional transition and there are population segments which are affected by malnutrition. Prevalence of central obesity in Yemeni children is low, being associated with urbanization and sedentary lifestyle. The importance of changes observed at early adolescence among girls living in urban areas, might be relevant for future National programs aimed at promoting physical activity and control of central obesity in women.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
