Department of Kinesiology and Health Education, University of Texas, Austin, Tx, USA.
Salud Publica Mex. 2013 Aug;55(4):387-93. doi: 10.21149/spm.v55i4.7222.
To evaluate change in body mass index (BMI) and weight status of indigenous youth in Oaxaca between the 1970s and 2007.
Heights and weights were measured in cross-sectional samples of school children 6-14 years in the 1970s (2 897) and 2007 (4 305); BMI was calculated. International Obesity Task Force cutoffs for weight status were used. BMI and prevalence of severe and moderate thinness, overweight and obesity were compared by year.
BMI increased significantly across time. Primary change in weight status occurred in overweight, 1970s, <2%; 2007, 7 to 12%. Little change occurred in thinness (<2%) and obesity (≤ 1%) in both surveys, except in children 6-9 years (obesity=4% in 2007).
BMI and prevalence of overweight increased across all ages from the 1970s to 2007, but children 6-9 years appeared to be more at risk for obesity than youth 10-14 years. Prevalence of thinness was unchanged.
评估 20 世纪 70 年代至 2007 年期间瓦哈卡州原住民青年的体重指数（BMI）和体重状况变化。
在 20 世纪 70 年代（2897 人）和 2007 年（4305 人）的横断面样本中测量了学童 6-14 岁的身高和体重；计算了 BMI。采用国际肥胖工作组（International Obesity Task Force）的体重状况截断值。按年份比较 BMI 和严重及中度消瘦、超重和肥胖的患病率。
BMI 随时间显著增加。体重状况的主要变化发生在超重方面，20 世纪 70 年代<2%；2007 年为 7%至 12%。在两次调查中，消瘦（<2%）和肥胖（≤1%）的变化不大，除了 6-9 岁的儿童（2007 年肥胖症为 4%）。
从 20 世纪 70 年代到 2007 年，所有年龄段的 BMI 和超重患病率都有所增加，但 6-9 岁的儿童似乎比 10-14 岁的青少年更容易肥胖。消瘦的患病率保持不变。
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