Background: Overweight/obesity (OW/OB) coexists in mother–child dyads. However, a dearth of evidence on the factors associated with this phenomenon calls for research. Objective: To analyze the association of sociodemographic factors with OW/OB in a sample of 260 Maya mother–child dyads from Yucatan, Mexico. Methods: During 2011 to 2014, we measured height and weight in children and their mothers and calculated their body mass index (BMI). The OW/OB cutoff points were defined, for mothers, as having a BMI >25 kg/m2 and, for children, as having a BMI-for-age >2 standard deviation of the World Health Organization references. Mother–child dyads were grouped according to their BMI status: (1) normal weight mother and child, (2) normal weight mother and OW/OB child, (3) OW/OB mother and normal weight child, and (4) OW/OB mother and child. A multinomial logistic regression model was used to analyze the interrelationships among BMI status in mother–child dyads, household size, and parental education. Results: Overweight/obesity coexisted in 40% of dyads. Compared to normal weight dyads (1), each unit increase in household size and in years of maternal education decreased the risks of the coexistence of OW/OB in mother–child dyads (odds ratio [OR] = 0.72, 95% confidence interval [CI] 0.55-0.94, P = .015; OR = 0.70, 95% CI 0.52-0.94, P = .019, respectively). Conversely, each year increase in paternal education increased the risk for OW/OB in dyads (OR = 1.47, 95% CI 1.08-1.99, P = .015). Conclusions: Results suggest that household size and parental education contribute to shape BMI-based nutritional status in this sample of mother–child dyads.

中文翻译：

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墨西哥尤卡坦 2 个城市环境中母子二人的体重指数及其与家庭规模和父母教育的关联

背景：超重/肥胖 (OW/OB) 在母子二人组中并存。然而，缺乏与这种现象相关的因素的证据需要研究。目的：在来自墨西哥尤卡坦半岛的 260 名玛雅母子二人样本中分析社会人口学因素与 OW/OB 的关联。方法：2011 年至 2014 年期间，我们测量了儿童及其母亲的身高和体重，并计算了他们的体重指数 (BMI)。对于母亲，OW/OB 截止点被定义为 BMI >25 kg/m2，对于儿童，定义为 BMI-for-age >2 世界卫生组织参考标准偏差。母子二人组根据他们的 BMI 状态分组：（1）正常体重的母亲和孩子，（2）正常体重的母亲和 OW/OB 孩子，（3）OW/OB 母亲和正常体重的孩子，以及（4）OW /OB 母子。使用多项逻辑回归模型分析母子二人的BMI状态、家庭规模和父母教育之间的相互关系。结果：超重/肥胖在 40% 的二人组中并存。与正常体重对偶 (1) 相比，家庭规模和母亲受教育年限每增加一个单位，母子对偶中 OW/OB 共存的风险就会降低（优势比 [OR] = 0.72，95% 置信区间 [ CI] 0.55-0.94，P = .015；OR = 0.70，95% CI 0.52-0.94，P = .019）。相反，父亲教育的逐年增加会增加双胞胎中 OW/OB 的风险（OR = 1.47，95% CI 1.08-1.99，P = .015）。结论：结果表明，在这个母子二人样本中，家庭规模和父母教育有助于塑造基于 BMI 的营养状况。