S1 Dataset -

As a fundamental right, all women should have equal access to menstrual hygiene management (MHM). However, certain sociocultural contexts foster an atmosphere of secrecy surrounding menstruation, which discourages open discussion. The present study seeks to explore the relationship between attitudes on menstrual secrecy and MHM practices among young women in rural areas of the Lao People’s Democratic Republic (Lao PDR). In March 2023, a cross-sectional survey using semi-structured self-administered questionnaires was conducted on 80 women (age range, 15–24 years) randomly selected from eight villages in the central part of Lao PDR. Logistic regression analysis was performed to examine the associations between sociodemographic and economic characteristics, MHM practices, social support, and attitudes toward secrecy regarding menstruation. Among the 70 respondents, 68 (97.1%) reported being satisfied with current MHM practices; however, 27 (38.6%) agreed that menstruation should not be discussed with others. Some women lacked access to private spaces for changing pads or washing. The results of the logistic regression analysis indicated that women with higher monthly disposable income were less likely to endorse menstruation secrecy (odds ratio: 0.15, 95% confidence interval: 0.02–0.85). No significant associations were found between MHM practices and attitudes on secrecy. Although no direct association was found between MHM practices and attitudes on menstruation secrecy, some participants remain in unfavorable MHM environments.