Su Danping, Chen Hong, Guo Yishan, Feng Qiuyu, Dong Hongli, Zhang Shiyu, Ding Yanxi, Wang Yue, Li Ming, Zeng Guo
West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.
Department of Clinical Nutrition, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
Eur J Nutr. 2025 Mar 12;64(3):125. doi: 10.1007/s00394-025-03631-y.
Few studies have examined the association between lactating behaviors and postpartum weight retention (PPWR) during the 'Zuòyuèzi' period, a traditional Chinese postpartum confinement practice that typically occurs within the first month after delivery. This study aimed to examine the association between breastfeeding practices (exclusive vs. mixed feeding) and PPWR during the Zuòyuèzi period; and to explore the feasibility of the new latent category variable derived from latent class analysis (LCA) reflecting lactating experience and quality.
Multiple linear and logistic regressions were used to examine the associations among 749 mothers from the Phoenix Multicentre Mother-Infant Cohort Study in China. The new independent variable was generated using the best-fit model in LCA.
Women with a higher pre-pregnancy body mass index (BMI), who were not obese, had gestational diabetes mellitus during pregnancy and were living in coastal areas retained less weight. Multiple linear analysis showed that PPWR was partly affected by the type of breastfeeding as early as 1 month after delivery. The mixed-feeding group had a greater trend towards PPWR in comparison to the exclusive breastfeeding group (β = 0.694, P = 0.029). After adjusting for pre-pregnancy BMI and physical activity level through multiple regression analysis, exclusive breastfeeding reduced the risk of substantial PPWR by 26.3% (OR = 0.737; 95%CI, 0.543-0.999). There were distinctive differences in baseline information between the two independent latent category groups (Low/High Experience & Incentives). However, there was no significant association with the PPWR at 1 month after delivery.
Exclusive breastfeeding can lower the PPWR during the 'Zuòyuèzi' period in China.
很少有研究探讨“坐月子”期间（中国传统的产后 confinement 习俗，通常在分娩后的第一个月内）哺乳行为与产后体重滞留（PPWR）之间的关联。本研究旨在探讨“坐月子”期间母乳喂养方式（纯母乳喂养与混合喂养）与 PPWR 之间的关联；并探索从潜在类别分析（LCA）得出的反映哺乳经历和质量的新潜在类别变量的可行性。
对来自中国凤凰多中心母婴队列研究的 749 名母亲进行多元线性和逻辑回归分析，以检验其间的关联。新的自变量通过 LCA 中的最佳拟合模型生成。
孕前体重指数（BMI）较高、非肥胖、孕期患有妊娠期糖尿病且居住在沿海地区的女性体重滞留较少。多元线性分析表明，产后 1 个月时，PPWR 就部分受母乳喂养方式的影响。与纯母乳喂养组相比，混合喂养组的 PPWR 趋势更大（β = 0.694，P = 0.029）。通过多元回归分析调整孕前 BMI 和身体活动水平后，纯母乳喂养使大量 PPWR 的风险降低了 26.3%（OR = 0.737；95%CI，0.543 - 0.999）。两个独立的潜在类别组（低/高经验与动机）之间的基线信息存在显著差异。然而，与产后 1 个月时的 PPWR 无显著关联。
在中国，纯母乳喂养可降低“坐月子”期间的 PPWR。
