Fig. 1
From: Prevalence of gestational diabetes according to commonly used data sources: an observational study
Prevalence of GDM in the Growing Up in New Zealand study according to data source. n number, DHBs District Health Boards. bGDM in laboratory data defined as any positive blood glucose result after 12 weeks’ gestation in accordance with the criteria in use for each woman’s DHB of domicile during the study period. cSelf-reported data from antenatal and postpartum data collection points combined using responses “during this pregnancy only” and “for the first time in the last 14 weeks of pregnancy” as a proxy for GDM