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Diabetes Care. 2008 May;31(5):1037-9. doi: 10.2337/dc07-1957. Epub 2008 Jan 25.

Modestly elevated glucose levels during pregnancy are associated with a higher risk of future diabetes among women without gestational diabetes mellitus.

Author information

  • 1Department of Obstetrics & Gynecology, University of Washington, Seattle, Washington 98195-6460, USA. darcarr@u.washington.edu

Abstract

OBJECTIVE:

To determine whether 1-h oral glucose challenge test (OGCT) or 3-h oral glucose tolerance test (OGTT) results below gestational diabetes mellitus (GDM) criteria are associated with developing diabetes.

RESEARCH DESIGN AND METHODS:

A retrospective cohort study was performed among women without GDM who had a pregnancy OGCT (n = 24,780) or OGTT (n = 6,222). Subsequent diabetes was ascertained by ICD-9 codes or pharmacy or laboratory data over a median follow-up of 8.8 years.

RESULTS:

Diabetes risk increased across OGCT quartiles: adjusted hazard ratio (HR) 1.67 (95% CI 1.07-2.61) for 5.4-6.2 mmol/l, 2.13 (1.39-3.25) for 6.3-7.3 mmol/l, and 3.60 (2.41-5.39) for >or=7.4 mmol/l compared with <or=5.3 mmol/l. Women with one abnormal OGTT result had a higher risk compared with those with normal values (HR 2.08 [95% CI 1.35-3.20]).

CONCLUSIONS:

Women with modestly elevated glucose levels below the threshold for GDM had a higher risk for diabetes.

PMID:
18223032
[PubMed - indexed for MEDLINE]
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