Associations between fine particulate matter and its constituents and intrahepatic cholestasis of pregnancy.

Few studies have reported an association between intrahepatic cholestasis of pregnancy (ICP) and preconception exposure to PM and sunlight duration, but there has been no in-depth analysis of the correlation between ICP and different constituents of PM. Thus, we performed this retrospective analysis among 160,544 pregnant women who delivered between 2014 and 2020, to further estimate the impact of different constituents of PM, as well as the duration of sunlight, on ICP via generalized linear models. During the three months prior to conception, the adjusted odds ratios (aORs) for ICP were 1.

Effects of Particulate Matter on the Risk of Gestational Hypertensive Disorders and Their Progression.

Associations between particulate matter (PM) and gestational hypertensive disorders (GHDs) are well documented, but there is no evidence on the associations between PM and GHD progression, especially among those with assisted reproductive technology (ART) conceptions. To explore the effects of PM on the risk of GHDs and their progression among pregnant women with natural or ART conception, we enrolled 185,140 pregnant women during 2014-2020 in Shanghai and estimated the associations during different periods using multivariate logistic regression. During the 3 months of preconception, 10 μg/m increases in PM concentrations were associated with increased risks of gestational hypertension (GH) (PM: aOR = 1.

Application of the RCOG Risk Assessment Model for Evaluating Postpartum Venous Thromboembolism in Chinese Women: A Case-Control Study.

BACKGROUND Since China has not yet constructed its own risk assessment model (RAM) for pregnancy-related venous thromboembolism (VTE), more and more hospitals use the RCOG RAM for VTE risk prediction. However, the RCOG RAM was established based on Western populations, and its applicability in China is still uncertain. Thus, we aimed to evaluate the validity of the RCOG RAM in predicting postpartum VTE in Chinese maternity.