Malina Robert M, Peйa Reyes Maria Eugenia, Chávez Guillermo Bali, Little Bertis B
Department of Kinesiology and Health Education, University of Texas at Austin , Austin, TX , USA .
Ann Hum Biol. 2013 Sep-Oct;40(5):426-34. doi: 10.3109/03014460.2013.791721. Epub 2013 May 21.
To compare the prevalence of thinness, overweight and obesity with IOTF and WHO criteria among indigenous school youth from the state of Oaxaca, southern Mexico.
The sample included 11 454 indigenous youth (6216 boys, 5238 girls) 6-14 years of age. Heights and weights were measured in 2007 by trained staff. BMIs were calculated and classified as severely thin, moderately thin, normal, overweight or obese using age- and sex-specific IOTF and WHO cut-offs. Prevalence, percentage agreement between classifications, Spearman rank order correlations and Kappa coefficients were calculated.
Prevalence of overweight and obesity was higher with WHO than IOTF criteria, while prevalence of severe and moderate thinness did not appreciably differ between criteria. Weight status with the two criteria was discordant in 839 boys (13.5%) and 383 girls (7.3%) and more often for overweight and obesity than thinness. Percentage agreement, correlations and Kappa coefficients were moderate-to-high and were higher in girls than boys.
Prevalence of overweight and obesity among indigenous youth in Oaxaca was higher with WHO than IOTF criteria, whereas prevalence of severe and moderate thinness was similar. Differences in estimates for overweight and obesity have implications for surveillance.
比较墨西哥南部瓦哈卡州土著学龄青少年中，国际肥胖工作组（IOTF）和世界卫生组织（WHO）标准下消瘦、超重及肥胖的患病率。
样本包括11454名6至14岁的土著青少年（6216名男孩，5238名女孩）。2007年由经过培训的工作人员测量身高和体重。计算体重指数（BMI），并根据特定年龄和性别的IOTF及WHO临界值将其分类为严重消瘦、中度消瘦、正常、超重或肥胖。计算患病率、分类之间的百分比一致性、Spearman等级相关性和Kappa系数。
WHO标准下超重和肥胖的患病率高于IOTF标准，而严重和中度消瘦的患病率在两种标准之间没有明显差异。在839名男孩（13.5%）和383名女孩（7.3%）中，两种标准下的体重状况不一致，超重和肥胖的情况比消瘦更常见。百分比一致性、相关性和Kappa系数为中度至高，女孩高于男孩。
在瓦哈卡州的土著青少年中，WHO标准下超重和肥胖的患病率高于IOTF标准，而严重和中度消瘦的患病率相似。超重和肥胖估计值的差异对监测有影响。
