Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China.
Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China.
Sci Rep. 2017 Sep 5;7(1):10564. doi: 10.1038/s41598-017-09683-3.
Habitual midday napping is a common habit in China, especially for pregnant women. The purpose of this study was to examine whether duration and frequency of maternal habitual midday napping were associated with high birthweight (HBW). A total of 10,482 participants from Healthy Baby Cohort were include in our analysis. The information of the mothers and their infants were abstracted from medical records, or obtained from questionnaire. Logistic regression models were used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) of habitual midday napping duration and frequency with HBW. Of the participants, 8,705 (83.0%) reported having habitual midday napping. Duration and frequency of napping had a positive association with HBW without adjustment. After controlling for potential confounders, increasing risk of HBW was observed in participants who napped 1.5-2 hours (OR, 1.50, 95% CI, 1.14, 1.98), and ≥2 hours (OR, 1.35, 95% CI, 1.03, 1.78) compared with no habitual midday napping. Participants who took naps ≥5 days/week had a higher risk of HBW (OR, 1.37, 95% CI, 1.07, 1.77) compared with the women without naps. This suggests that longer (≥1.5 hours) and more frequent (≥5 days/week) maternal habitual midday napping were associated with an increased risk of HBW.
习惯性午睡是中国人的一种常见习惯，尤其是孕妇。本研究旨在探讨母亲习惯性午睡的持续时间和频率与巨大儿（HBW）的关系。共有 10482 名来自健康婴儿队列的参与者纳入本研究。母亲及其婴儿的信息从病历中摘录，或从问卷调查中获得。采用逻辑回归模型计算习惯性午睡持续时间和频率与 HBW 的比值比（OR）和 95%置信区间（CI）。在参与者中，8705 人（83.0%）报告有习惯性午睡。未经调整，午睡持续时间和频率与 HBW 呈正相关。在控制了潜在混杂因素后，与没有习惯性午睡的参与者相比，午睡 1.5-2 小时（OR，1.50，95%CI，1.14，1.98）和≥2 小时（OR，1.35，95%CI，1.03，1.78）的参与者发生 HBW 的风险增加。与没有午睡的女性相比，每周午睡≥5 天的参与者发生 HBW 的风险更高（OR，1.37，95%CI，1.07，1.77）。这表明较长（≥1.5 小时）和更频繁（≥5 天/周）的母亲习惯性午睡与 HBW 风险增加有关。
