Effect of fine particulate matter exposure on gestational diabetes mellitus risk: a retrospective cohort study.

Background: The literature on the association between fine particulate matter (PM2.5) exposure and gestational diabetes mellitus (GDM) risk has focused mainly on exposure during the first and second trimesters, and the research results are inconsistent. Therefore, this study aimed to investigate the associations between PM2.

Colonisation of Group B and its effects on pregnancy outcomes in pregnant women in Guangzhou, China: a retrospective study.

Objectives: This study was to investigate the colonisation rate of Group B (GBS) during pregnancy, and to evaluate the influence of GBS colonisation on pregnancy outcomes.

Design: A retrospective cohort study.

Setting: Data of 47 380 pregnant women from 2016 to 2022 were collected from the Maternal and Child Health Hospital of Huadu District, Guangzhou City, China.

The change in the relationship between temperature and respiratory diseases among children in Guangzhou, China.

Temperature is closely associated with respiratory disease (RD) in children, but few studies have examined whether the relationship between ambient temperature and RD in children changed after the COVID-19 epidemic. The aim of this study was to assess the relationship between temperature and RD in children after the COVID-19 epidemic in Guangzhou, China. We used a distributed lag nonlinear model to compare the relationship between temperature and RD among children in Guangzhou from 2018 to 2022.

Association between air pollution exposure and gestational diabetes mellitus in pregnant women: a retrospective cohort study.

The global prevalence of gestational diabetes mellitus (GDM) is increasing annually, and previous research reports on the relationship between exposure to air pollutants and GDM are not completely consistent. We investigated the association between air pollutant exposure and GDM in pregnant women in a retrospective cohort study in Guangzhou. We found that in the first trimester, exposure to PM and CO showed a significant association with GDM.

Maternal risk factors and pregnancy complications associated with low birth weight neonates in preterm birth.

Aim: To explore the association between common pregnancy complications and low birth weight (LBW) neonates in preterm birth.

Methods: The study included 1764 pregnant women who experienced a single birth prematurely at a city hospital in Guangzhou, China between January 1, 2017 and December 31, 2019. A total of 874 normal birth weight neonates and 890 LBW neonates were included.