Supplement-Heterogeneity in Postpartum “Confinement” Practices and Their Association with Depression

This dataset was derived from a cross-sectional survey conducted between January and February 2016 in China. The study population consisted of women who attended 42-day postpartum follow-up clinics, corresponding to 30–60 days postpartum. Participants were recruited using convenience sampling from two Maternal and Child Health Hospitals and one general hospital located in Hunan Province, Xiamen City (Fujian Province), and Fuling District of Chongqing Municipality. All data were collected by trained investigators using an online questionnaire system (Questionnaire Star platform).The dataset comprises three main components:(1) Sociodemographic and pregnancy-related characteristics (Table 1), including maternal age, educational level, employment status, monthly household income, history of depression, parity, pregnancy intention, mode of delivery, infant sex and health status, attitudes toward postpartum “confinement,” willingness to practice it, and postpartum depression screening results;(2) Specific postpartum “confinement” practices and levels of compliance (Table 3), assessed retrospectively by self-report. Compliance with 29 practice items across four domains—behavior, diet, warmth, and hygiene—was classified into three categories: “full compliance,” “partial compliance,” and “non-compliance”;(3) Latent Profile Analysis (LPA) results of confinement practice heterogeneity (Table 4), based on compliance scores across the four domains, including model fit indices (AIC, BIC, aBIC, BLRT, Entropy) and the sample size of each latent class.Postpartum depression was assessed using the Chinese version of the Edinburgh Postnatal Depression Scale (EPDS), with total scores ranging from 0 to 30. A cutoff score of >9.5 was applied to identify women at risk of postpartum depression, consistent with prior validation studies. Variable definitions, grouping criteria, and analytical approaches are consistent with those reported in the associated publication.During data processing, missing values were examined. One participant with complete missing data on confinement practice items was excluded from the relevant analyses, while the remaining variables exhibited minimal missingness. All data were anonymized prior to submission and contain no personally identifiable information.