Table 4—

Adjusted ORs for the independent variables tested in multiple logistic regression with diabetes, known type 2 diabetes, or known type 1 diabetes as the dependent variable at follow-up in 2002

DiabetesType 2 diabetesType 1 diabetes
Adjusted OR (95% CI)*Adjusted OR (95% CI)*Adjusted OR (95% CI)*
n in full model (diabetes/total)162/425143/41716/430
Prepregnancy BMI <25 kg/m21.001.00
Prepregnancy BMI ≥25 and <30 kg/m22.2 (1.3–3.8)2.6 (1.5–4.7)
Prepregnancy BMI ≥30 kg/m23.0 (1.7–5.2)§4.2 (2.3–7.4)§
Family history of diabetes1.9 (1.2–3.2)
Diagnosis before gestational age 24 weeks3.6 (1.7–7.3)2.9 (1.5–5.9)
Fasting plasma glucose at diagnosis of GDM (mmol/l)2.3 (1.3–3.8)2.1 (1.2–3.6)
IGT postpartum4.4 (2.5–7.7)§3.5 (2.06.0)§2.8 (1.0–7.9)
Preterm delivery3.2 (1.1–9.9)
  • Only statistically significant ORs are presented.

  • *

    * Adjusted for the other independent variables in the final model, including cohort effect (old versus new cohort) and follow-up length as a continuous variable.

  • Women with overt diabetes postpartum were not included in the analyses (n = 12). The total number is the number of women from both cohorts in 2002 included in the final model and with available data on all the variables. As a result of the OGTT, postpartum is included in the final models, and as only 87.5% had an OGTT postpartum, the total number of women included in the final models was lower than the total number of all the participants.

  • P < 0.01

  • §

    § P < 0.0005

  • P < 0.05

  • Highest quartile of fasting glucose compared with the three lowest quartiles: 75th percentile = 5.6 mmol/l.