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Lower Risk of Developing Gestational Diabetes Mellitus in the Group Prenatal Care Model
Liwei Chen1, Cheng-Tzu Hsieh1, Lu Zhang2
1Department of Epidemiology, University of California, Los Angeles, Los Angeles, California, USA.
Paediatric and Perinatal Epidemiology
|June 20, 2026
Summary
CenteringPregnancy group prenatal care (CPNC) significantly reduced the risk of gestational diabetes mellitus (GDM) in pregnant individuals. This group care model offers a lower incidence of GDM compared to traditional individual prenatal care (IPNC).
Area of Science:
- Obstetrics and Gynecology
- Public Health
- Maternal-Fetal Medicine
Background:
- Gestational diabetes mellitus (GDM) presents significant risks for mothers and infants.
- CenteringPregnancy group prenatal care (CPNC) is a popular model for managing pregnancy risk factors.
- The impact of CPNC on GDM development requires further investigation.
Purpose of the Study:
- To evaluate the association between CPNC and the incidence of GDM.
- To compare GDM rates in pregnant individuals receiving CPNC versus traditional individual prenatal care (IPNC).
Main Methods:
- Retrospective cohort study of 8313 participants in South Carolina.
- GDM screening and diagnosis utilized a two-step approach between 24-30 weeks gestation.
- Inverse probability of treatment weighting (IPTW) with stabilized propensity scores was applied to estimate the risk ratio (RR) of GDM.
Main Results:
- The original cohort showed GDM incidence of 4.7% for CPNC and 6.8% for IPNC.
- After IPTW, CPNC was associated with a 36% lower risk of GDM (RR 0.64, 95% CI 0.51, 0.81).
- This reduced risk was observed in non-Hispanic White and non-Hispanic Black subgroups, but not in Hispanic participants.
Conclusions:
- CenteringPregnancy group prenatal care (CPNC) is linked to a reduced risk of developing gestational diabetes mellitus (GDM).
- CPNC may be an effective strategy for mitigating GDM risk in diverse pregnant populations.
- Further research could explore mechanisms underlying CPNC's protective effect against GDM.
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