Ryan Jeanna T, Day Heather, Egger Marlene J, Wu Jiqiang, Depner Christopher M, Shaw Janet M
Department of Health and Kinesiology, University of Utah College of Health, Salt Lake City, UT, USA.
Department of Family and Preventive Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA.
Sleep Adv. 2023 Dec 27;5(1):zpad056. doi: 10.1093/sleepadvances/zpad056. eCollection 2024.
Approximately 75% of women weigh more at 1-year postpartum than pre-pregnancy. More than 47% retain >10 lbs at 1-year postpartum, which is associated with adverse health outcomes for mother and child. Disturbed sleep may contribute to risk of postpartum weight retention (PWR) as short sleep duration is associated with increased risk of obesity. Thus, we investigated whether night-time sleep duration is associated with risk for excessive PWR. We also explored night-time sleep duration and change in postpartum waist circumference.
This is an ancillary analysis from a prospective cohort study. Participants were healthy primiparous adults with a singleton birth. Excessive PWR at 1-year postpartum was defined as ≥7% of pre-pregnancy weight. Log-binomial and linear regression assessed associations between night-time sleep duration at 6 months postpartum and PWR at 1-year postpartum. Linear regression assessed the association between night-time sleep duration and change in postpartum waist circumference.
Mean age of participants ( = 467) was 29.51 (SD ± 4.78) years. Night-time sleep duration by actigraphy or self-report was not associated with risk for excessive PWR (risk ratio 0.96, [95%CI 0.87-1.06]; risk ratio 0.95 [95%CI 0.83-1.07], respectively) or change in waist circumference.
Night-time sleep duration at 6 months postpartum was not associated with PWR at 1-year postpartum. Mixed findings among our results and previous research could be due to our focus on night-time sleep, and differences in sleep measurement methods and timeframes across studies. More comprehensively assessing sleep, including multiple sleep dimensions, may help advance our understanding of potential links between sleep and PWR.
The parent study, Motherhood and Pelvic Health (MAP Study), is registered at https://clinicaltrials.gov/ct2/show/NCT02512016, NCT02512016.
约75%的女性产后1年体重高于孕前。超过47%的女性产后1年体重仍比孕前重10磅以上,这与母婴不良健康结局相关。睡眠紊乱可能会导致产后体重滞留(PWR)风险增加,因为短睡眠时间与肥胖风险增加有关。因此,我们调查了夜间睡眠时间是否与过度PWR风险相关。我们还探讨了夜间睡眠时间与产后腰围变化情况。
这是一项前瞻性队列研究的辅助分析。参与者为健康的初产单胎成年人。产后1年过度PWR定义为体重较孕前增加≥7%。对数二项回归和线性回归评估产后6个月夜间睡眠时间与产后1年PWR之间的关联。线性回归评估夜间睡眠时间与产后腰围变化之间的关联。
参与者(n = 467)的平均年龄为29.51(标准差±4.78)岁。通过活动记录仪或自我报告得出的夜间睡眠时间与过度PWR风险(风险比0.96,[95%置信区间0.87 - 1.06];风险比0.95 [95%置信区间0.83 - 1.07])或腰围变化均无关联。
产后6个月的夜间睡眠时间与产后1年的PWR无关。我们的研究结果与先前研究结果不一致,可能是因为我们关注的是夜间睡眠,以及各研究中睡眠测量方法和时间框架存在差异。更全面地评估睡眠,包括多个睡眠维度,可能有助于增进我们对睡眠与PWR之间潜在联系的理解。
母研究“母亲身份与骨盆健康(MAP研究)”已在https://clinicaltrials.gov/ct2/show/NCT02512016,NCT02512016注册。