Background: The prevalence of overweight (OWT) and obesity (OB), defined by the body mass index (BMI, kg/m2) among children and youth has increased worldwide in the last 30-40 years.Aim: To evaluate the weight status, defined by the BMI, of indigenous school children and youth resident in different regions of MexicoSubjects and methods: Students 6-18 years (31,448 boys, 27,306 girls) were enrolled in bilingual schools for indigenous children and youth in Mexico in 2012. Height and weight were measured; the BMI was calculated. The BMI of each student was classified relative to International Obesity Task Force (IOTF) age- and sex-specific criteria as thin (three grades), normal, overweight (OWT) or obese (OB). The sample was divided into five geographic regions for analysis: North, Central, South-Gulf, South-Pacific, and South-Southeast. Age- and sex-specific prevalence, 95% confidence intervals, and Chi-square tests were calculated.Results: Prevalence of OWT + OB was highest in the South-Gulf, South-Pacific and South-Southeast regions and lowest in the North and Central regions, while thinness was most prevalent in the North and Central regions.Conclusion: Prevalence of severe and moderate thinness was relatively low, while the combined prevalence of OWT + OB was generally more prevalent in indigenous boys than girls. However, the prevalence of thinness, OWT + OB among indigenous children and youth was lower than in the general population of children and youth in Mexico.

中文翻译：

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墨西哥土著学童和青少年的瘦弱，超重和肥胖。

背景：在过去的30-40年中，全球范围内儿童和青少年的体重指数（BMI，kg / m2）定义的超重（OWT）和肥胖（OB）患病率呈上升趋势。目的：评价体重状况根据BMI的规定，调查对象是墨西哥不同地区的土著学童和青少年。对象和方法：2012年，墨西哥6-18岁的学生（31,448名男孩，27,306名女孩）进入了针对土著儿童和青年的双语学校。测量体重；计算出了BMI。相对于国际肥胖特别工作组（IOTF）的年龄和性别特定标准，每名学生的BMI分为瘦（三级），正常，超重（OWT）或肥胖（OB）。该样本被分为五个地理区域进行分析：北部，中部，南部海湾，南太平洋和东南东南。计算出按年龄和性别划分的患病率，95％的置信区间和卡方检验。结果：OWT + OB患病率在南湾，南太平洋和东南东南地区最高，在北部和南部地区最低。中部地区，而北部和中部地区则最普遍。结论：重度和中度稀疏的患病率相对较低，而OWT + OB的合并患病率在土著男孩中普遍高于女孩。但是，在墨西哥土著儿童和青年中，瘦，OWT + OB的患病率低于墨西哥儿童和青年的总人口。南太平洋和东南东南地区，在北部和中部地区最低，而薄度在北部和中部地区最为普遍。通常在土著男孩中比女孩更为普遍。但是，在墨西哥土著儿童和青年中，瘦，OWT + OB的患病率低于墨西哥儿童和青年的总人口。南太平洋和东南东南地区，在北部和中部地区最低，而薄度在北部和中部地区最为普遍。通常在土著男孩中比女孩更为普遍。但是，在墨西哥土著儿童和青年中，瘦，OWT + OB的患病率低于墨西哥儿童和青年的总人口。