CRONICAS Centre of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru.
Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.
PLoS One. 2017 Apr 19;12(4):e0175685. doi: 10.1371/journal.pone.0175685. eCollection 2017.
The aim of the study was to estimate the association between maternal perception of their child's health status and (mis)classification of their child's actual weight with future weight change. We present cross-sectional and longitudinal analyses from the Peruvian younger cohort of the Young Lives Study. For cross-sectional analysis, the exposure was maternal perception of child health status (better, same or worse); the outcome was underestimation or overestimation of the child's actual weight. Mothers were asked about their perception of their child's weight (same, lighter or heavier than other children). Actual weight status was defined with IOTF BMI cut-off points. For longitudinal analysis, the exposure was (mis)classification of the child's actual weight; the outcome was the standardized mean difference between follow-up and baseline BMI. A Generalized Linear Model with Poisson family and log-link was used to report the prevalence ratio (PR) and 95% confidence intervals (95% CI) for cross-sectional analyses. A Linear Regression Model was used to report the longitudinal analysis as coefficient estimates (β) and 95% CI. Normal weight children who were perceived as more healthy than other children were more likely to have their weight overestimated (PR = 2.06); conversely, those who were perceived as less healthy than other children were more likely to have their weight underestimated (PR = 2.17). Mean follow-up time was 2.6 (SD: 0.3) years. Overall, underweight children whose weight was overestimated were more likely to gain BMI (β = 0.44); whilst overweight children whose weight was considered to be the same of their peers (β = -0.55), and those considered to be lighter than other children (β = -0.87), lost BMI. Maternal perception of the child's health status seems to influence both overestimation and underestimation of the child's actual weight status. Such weight (mis)perception may influence future BMI.
本研究旨在评估母亲对子女健康状况的感知与子女实际体重的（误）分类之间的关联，及其与未来体重变化的关系。我们呈现了来自秘鲁年轻队列的 Young Lives 研究的横断面和纵向分析结果。在横断面分析中，暴露因素是母亲对子女健康状况的感知（更好、相同或更差）；结果是低估或高估子女的实际体重。母亲被问及她们对子女体重的感知（相同、更轻或更重）。实际体重状况由 IOTF BMI 切点定义。在纵向分析中，暴露因素是（误）分类子女的实际体重；结果是随访和基线 BMI 之间的标准化平均差。使用具有泊松家族和对数链接的广义线性模型报告横断面分析的患病率比（PR）和 95%置信区间（95%CI）。使用线性回归模型报告纵向分析的系数估计值（β）和 95%CI。被认为比其他孩子更健康的正常体重儿童更有可能被高估体重（PR=2.06）；相反，那些被认为比其他孩子更不健康的儿童更有可能被低估体重（PR=2.17）。平均随访时间为 2.6（SD：0.3）年。总体而言，被高估体重的体重不足儿童更有可能增加 BMI（β=0.44）；而体重被认为与同龄人相同的超重儿童（β=-0.55）和体重被认为比其他孩子轻的儿童（β=-0.87）则会减轻 BMI。母亲对子女健康状况的感知似乎会影响对子女实际体重状况的高估和低估。这种体重（误）感知可能会影响未来的 BMI。
