Gestational diabetes & diabetes in pregnancy

Decreased complexity of glucose time series index associated with adverse pregnancy outcomes in gestational diabetes mellitus

Diabetes Obes MetabPublished Retrospective cohort study

Main finding · Composite adverse outcomesResult — go to the resultOdds ratio 12.10 95% CI 4.41–33.18

Authors' conclusion

A lower CGI during pregnancy was associated with composite adverse outcomes and LGA. CGI, a novel glucose homeostasis predictor, seems to be superior to conventional glucose indicators for the prediction of adverse pregnancy outcomes in women with GDM.

Study context

Population
Singleton pregnant women with gestational diabetes mellitus (GDM) undergoing continuous glucose monitoring (CGM) at a median of 26.86 gestational weeks
Participants
388 women
Exposure
Low vs middle vs high complexity of glucose time series index tertiles
Outcome
Composite:
  • Adverse outcomes
  • Large for gestational age (LGA)

Main finding

Composite adverse outcomes

Odds ratio

12.10

95% CI 4.41–33.18

Low CGIvs High CGI
OR 12.10 (95% CI 4.41–33.18)

As reported in the abstract

Composite adverse outcomes, all participants
63 (16.2%)

Observational data: associations, not effects.

Further findings

OutcomeOR (95% CI)
LGALow CGIvs High CGIAdjusted for confounders12.68 (4.04–39.75)
Large for gestational age (LGA) — LGA infants, all participants
71 (18.3%)

Prediction of adverse pregnancy outcomes (ROC analysis)

CGI significantly better than HbA1c and conventional CGM indicators
all p < .05

Original publication

Decreased complexity of glucose time series index associated with adverse pregnancy outcomes in gestational diabetes mellitus. Diabetes Obes Metab. Published 21 June 2024. doi:10.1111/dom.15698

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