Natural course of gestational diabetes mellitus: long term follow up of women in the SPAWN study

BJOG. 2002 Nov;109(11):1227-31. doi: 10.1016/s1470-0328(02)01973-0.

Abstract

Objectives: Long term follow up women with gestational diabetes mellitus (GDM).

Design: Case-control study.

Setting: Academic obesity unit.

Population: Women earlier identified as having gestational diabetes mellitus.

Method: Twenty-eight women diagnosed with GDM in 1984-1985, and a control group (n = 52) who gave birth at the same time performed a 2-h oral glucose tolerance test 15 years later. Basic anthropometry and questions about various aspects of eating and exercise habits were furthermore obtained.

Results: Ten women (35%) in the GDM group were diagnosed with type 2 diabetes mellitus and none in the control group (P < 0.001). Mean BMI in the diabetic group was 27.4 kg/m2 and in the non-diabetic GDM group 24.6 kg/m2 (P < 0.05). The mean weight gain since the first child was 8A kg in all GDM versus 8.1 kg in controls (ns). The women who developed type 2 diabetes mellitus, however, gained 15.1 kg since the birth of their first child (P < 0.05).

Conclusions: Women who are diagnosed with GDM have a considerably higher risk of developing type 2 diabetes mellitus later in life. Despite a close medical monitoring during pregnancy, the further follow up within the health care system and information about long term consequences of GDM for later type 2 diabetes mellitus development seems to be generally lacking. More active strategies for future weight control and lifestyle advice after delivery might therefore be indicated for women with GDM.

MeSH terms

  • Adolescent
  • Adult
  • Body Mass Index
  • Case-Control Studies
  • Chi-Square Distribution
  • Diabetes Mellitus / etiology
  • Diabetes Mellitus, Type 2 / etiology*
  • Diabetes, Gestational / complications*
  • Female
  • Follow-Up Studies
  • Humans
  • Middle Aged
  • Obesity
  • Parity
  • Pregnancy
  • Prognosis
  • Risk Factors
  • Weight Gain