Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
Research Centre for Prevention and Health, Copenhagen University Hospital Glostrup, Capital Region, Copenhagen, Denmark.
Eur Eat Disord Rev. 2019 Jul;27(4):436-444. doi: 10.1002/erv.2680. Epub 2019 Apr 23.
To examine how childhood weight trajectories are associated with disordered eating behaviours (DEBs) in early adolescence.
Self-reports on DEBs (fasting, purging, and binge eating) were obtained from 18,337 children in the 11-year follow-up of the Danish National Birth Cohort. For this population, birth register information on gestational age and birth weight was categorized into the following: small, appropriate, and large for gestational age. Prospective parent-reported height and weight data at child ages 1 and 7 years were dichotomized using standardized cut-offs into non-overweight and overweight. A 12-category weight trajectory variable was created, and the associations between weight trajectory and DEBs were estimated using logistic regression.
In total, 7.0% 11- to 12-year olds reported DEBs. Compared with children born appropriate for gestational age and being non-overweight at age 1 and 7 years, children born small for gestational age and who were overweight at age 1 and 7 years had a very high risk of disordered eating (OR 7.00; CI [2.57, 19.40]). The statistical analyses revealed, however, that overweight at age 7 years was the main contributor and independently of trajectory increased the risk of disordered eating at age 11-12 years significantly (OR 3.16 CI [2.73, 3.65]).
Overweight not in the first year of life, but at age 7 years was more predictive for DEBs.
研究儿童体重轨迹与青少年早期饮食失调行为（DEBs）的关系。
丹麦国家出生队列的 18337 名儿童在 11 年的随访中自我报告了 DEBs（禁食、催吐和暴食）。对于这部分人群，根据胎龄和出生体重的出生登记信息将其分为：小于胎龄儿、适于胎龄儿和大于胎龄儿。前瞻性的父母在孩子 1 岁和 7 岁时报告的身高和体重数据，使用标准化的截断值分为非超重和超重。创建了一个 12 类体重轨迹变量，并使用逻辑回归估计体重轨迹与 DEBs 之间的关系。
共有 7.0%的 11 至 12 岁儿童报告有 DEBs。与胎龄正常、1 岁和 7 岁时体重正常的儿童相比，胎龄小且 1 岁和 7 岁时超重的儿童饮食失调的风险极高（OR 7.00；95%CI[2.57, 19.40]）。然而，统计分析表明，7 岁时超重是主要因素，并且独立于体重轨迹显著增加了 11-12 岁时饮食失调的风险（OR 3.16，95%CI[2.73, 3.65]）。
不是生命的第一年，而是 7 岁时超重，对 DEBs 的预测作用更大。
