Gestational diabetes & diabetes in pregnancy
Rapid Postpartum Progression to Diabetes Following Early Antenatal Prediabetes: Evidence From a Multiethnic New Zealand Cohort
Authors' conclusion
Early antenatal prediabetes is a strong predictor of rapid progression to type 2 diabetes. HbA1c at booking provides an important risk stratification tool identifying people with the greatest need for preventive intervention. Further research could evaluate lipid profiling to identify genetic and autoimmune diabetes subtypes within antenatal prediabetes.
Study context
- Population
- Pregnant people in New Zealand (multiethnic cohort); postpartum laboratory data from electronic health records until November 2025
- Participants
- 355 vs 490
- Exposure
- Early antenatal prediabetes vs gestational diabetes mellitus (GDM) in later pregnancy
- Antenatal prediabetesn = 355
- GDMn = 490reference
- Outcome
- Postpartum type 2 diabetes
Main finding
As reported in the abstract
Postpartum T2D, by antenatal HbA1c
Each group vs GDMAdjusted hazard ratio (CI)P value
Antenatal prediabetes (HbA1c 5.9% (41 mmol/mol))
4.5(2.8–7.3)
P < 0.001Antenatal prediabetes (HbA1c 6.2-6.4% (44-47 mmol/mol))
16.7(10.8–25.8)
P < 0.001Observational data: associations, not effects.
Further findings
| Outcome | Glucokinase monogenic diabetes | T2D | No diabetes | T1D | P value |
|---|---|---|---|---|---|
| Serum TG in antenatal prediabetes cohort, by postpartum diagnosis (exploratory)Glucokinase monogenic diabetes vs T2D · lower TG with glucokinase monogenic diabetes | mean 53.1 mg/dL (0.6 mmol/L) | 183.4 mg/dL (2.07 mmol/L) | 165.6 mg/dL (1.87 mmol/L) | mean 87.7 mg/dL (0.99 mmol/L) | P = 0.012 |
| Serum TG in antenatal prediabetes cohort, by postpartum diagnosis (exploratory)Glucokinase monogenic diabetes vs No diabetes · lower TG with glucokinase monogenic diabetes | P = 0.013 |
Original publication
Rapid Postpartum Progression to Diabetes Following Early Antenatal Prediabetes: Evidence From a Multiethnic New Zealand Cohort. Diabetes Care. Published 21 January 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →