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      Relationship between prepregnancy body mass index weight gain during pregnancy and offspring body composition during preschool age


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          Objective To explore the relationship between prepregnancy body mass index, weight gain during pregnancy with preschool obesity and body composition in offspring, so as to provide evidence for gestational weight gain and childhood obesity prevention.

          Methods A total of 1 333 preschool children were recruited from 3 kindergartens in Tianjin from September to December 2020. Structured questionnaire was used to collect children’s lifestyle information. Height, weight and body fat mass of children were assessed, and body fat percentage (FM%), fat mass index (FMI) and non-fat mass index (FFMI) were calculated. Maternal medical records were collected and the mothers were grouped according to their prepregnancy weight status and weight gain during pregnancy. χ 2 test, t test, linear regression model and Logistic regression were used to analyze the differences of obesity and body composition among different groups.

          Results The prevalence of overweight and obesity in preschoolers was 12.7% and 7.7%. After adjusting maternal age and delivery, gestational age, gender, age and lifestyle of children, the correlation between maternal pre-pregnancy BMI, gestational weight gain with obesity and body composition indexes of children in preschool age was statistically significant ( P<0.05). For mothers with normal weight before pregnancy, excessive weight gain during pregnancy increased risk of high FM% and high FMI in offspring ( OR = 1.81, 1.68, P<0.05). There was no significant correlation between maternal weight gain during pregnancy with offspring obesity and body composition among mothers with prepregnant overweight or obesity.

          Conclusion Maternal weight status before pregnancy and weight gain during pregnancy are correlated with obesity and body composition in the preschool age of offspring. It is suggested that mothers should maintain appropriate weight status before and during pregnancy.


          【摘要】 目的 探索孕前体质量指数、孕期增重与子代学龄前期肥胖和体成分的关系, 为指导母亲从孕前开始合理控制 体重和预防儿童肥胖提供依据。 方法 于 2020 年 9—12 月在天津市 3 所幼儿园招募 1 333 名学龄前儿童。结构化问卷收 集儿童生活方式信息; 检测儿童身高、体重、体脂肪组织质量, 计算体脂肪百分比 (FM%)、脂肪质量指数 (FMI)、非脂肪质 量指数 (FFMI)。获取儿童母亲孕产期医疗记录, 将母亲按孕前体重状态和孕期增重分组。采用妒检验j检验、线性回归 模型及 Logistic 回归方法分析不同组间儿童肥胖及体成分差异。 结果 纳入研究的学龄前儿童超重及肥胖检出率为 12.7% 和 7.7%。调整母亲分娩年龄及产次, 儿童出生孕周、性别及年龄和生活方式后, 母亲孕前 BMI、孕期增重与子代学龄 前期的肥胖及体成分指标的相关性均有统计学意义 ( P 值均<0.05)。孕前正常体重母亲孕期增重过多会增加子代高 FM% 及高 FMI 的风险 ( OR 值分别为 1.81, 1.68, P 值均<0.05); 孕前超重肥胖母亲, 子代肥胖风险及体成分与母亲孕期增重相关 性均无统计学意义。 结论 母亲孕前体重状态、孕期增重与子代学龄前期肥胖及体成分均存在关联。建议母亲孕前及孕 产期合理控制体重。

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          Author and article information

          Chinese Journal of School Health
          Chinese Journal of School Health (China )
          01 July 2022
          01 July 2022
          : 43
          : 7
          : 1090-1094
          [1] 1Department of Epidemiology, Capital Institute of Pediatrics, Beijing (100020), China
          Author notes
          *Corresponding author: CHEN Fangfang, E-mail: airechen@ 123456126.com
          © 2022 Chinese Journal of School Health

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 Unported License (CC BY-NC 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by-nc/4.0/.

          Self URI (journal-page): http://www.cjsh.org.cn
          Journal Article

          Ophthalmology & Optometry,Pediatrics,Nutrition & Dietetics,Clinical Psychology & Psychiatry,Public health
          Body mass index,Child, preschool,Regression analysis,Mothers,Body composition


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