Maternal weight change between 1 and 2 years postpartum: the importance of 1 year weight retention.
Maternal weight change between 1 and 2 years postpartum: the importance of 1 year weight retention.
复制标题
DOI：
10.1038/oby.2012.41
复制
发表时间：
2012-07
期刊：
影响因子：
--
通讯作者：
Olson CM
中科院分区：
文献类型：
--
作者：
Lipsky LM;Strawderman MS;Olson CM
妊娠期体重增加可能会导致一些女性的母体BMI长期增加。本研究的目的是检查产妇产后1年至2年的体重变化，并比较2年体重保持的分类，并考虑和不考虑1年至2年的体重增加。在纽约北部几个县寻求产前护理的妇女（n = 413）的观察性队列研究中，测量或估算早孕体重（EPW，头三个月），并在分娩前、产后1年（1年）和产后2年（2年）获得随访指标。测量基线身高;从问卷调查和医疗记录中获得人口统计学和行为数据。使用线性和逻辑回归评估1年-2年体重变化（kg）和1年-2年体重增加（≥2.25 kg）与人体测量学、社会经济学和行为变量的相关性。虽然1年-2年体重变化的平均值± SE为0.009 ± 4.6 kg，但1年-2年体重增加（≥2.25 kg）很常见（n = 108，26%）。超重（ORadj = 2.63，CI 95%= 1.43-4.82）和肥胖（ORadj = 2.93，CI 95%= 1.62-5.27）女性1年-2年体重增加的几率高于BMI <25的女性。当忽略1 - 2年体重增加时，38%（n = 37）的女性2年体重保持（2年EPW ≥2.25 kg）被错误分类。1年体重保持率（1 YWR）（1 y-EPW）与1年-2年体重变化（βadj ± SE = −0.28 ± 0.04，P < 0.001）和体重增加（≥2.25 kg）呈负相关（ORadj = 0.91，CI 95%= 0.87-0.95）。妊娠早期BMI较高的妇女，1年体重保持率和1 - 2年体重变化之间的关系减弱。1年-2年的体重变化主要通过与1年体重保持率的反比关系进行预测。高频率的体重增加对产后体重保持的分类具有重要意义。
Pregnancy weight gain may lead to long-term increases in maternal BMI for some women. The objective of this study was to examine maternal body weight change 1y–2y postpartum, and to compare classifications of 2y weight retention with and without accounting for 1y–2y weight gain. Early pregnancy body weight (EPW, first trimester) was measured or imputed, and follow-up measures obtained before delivery, 1 year postpartum (1y) and 2 years postpartum (2y) in an observational cohort study of women seeking prenatal care in several counties in upstate New York (n = 413). Baseline height was measured; demographic and behavioral data were obtained from questionnaires and medical records. Associations of 1y–2y weight change (kg) and 1y–2y weight gain (≥2.25 kg) with anthropometric, socioeconomic, and behavioral variables were evaluated using linear and logistic regressions. While mean ± SE 1y–2y weight change was 0.009 ± 4.6 kg, 1y–2y weight gain (≥2.25 kg) was common (n = 108, 26%). Odds of weight gain 1y–2y were higher for overweight (ORadj = 2.63, CI95% = 1.43–4.82) and obese (ORadj = 2.93, CI95% = 1.62–5.27) women than for women with BMI <25. Two year weight retention (2y–EPW ≥2.25 kg) was misclassified in 38% (n = 37) of women when 1y–2y weight gain was ignored. One year weight retention (1YWR) (1y–EPW) was negatively related to 1y–2y weight change (βadj ± SE = −0.28 ± 0.04, P < 0.001) and weight gain (≥2.25 kg) (ORadj = 0.91, CI95% = 0.87–0.95). Relations between 1y weight retention and 1y–2y weight change were attenuated for women with higher early pregnancy BMI. Weight change 1y–2y was predicted primarily by an inverse relation with 1y weight retention. The high frequency of weight gain has important implications for classification of postpartum weight retention.