[ Back to EurekAlert! ] Public release date: 20-May-2009
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Contact: Deborah Creatura
Deborah.Creatura@ices.on.ca
416-480-4780
Institute for Clinical Evaluative Sciences

Pregnant women with mildly abnormal blood sugar levels at higher risk of developing type 2 diabetes

TORONTO, May 22, 2009 Gestational diabetes happens in more than three per cent of pregnancies in Ontario. Usually the condition resolves itself after delivery, but many studies have shown that these women are at a very high risk for developing "regular" type 2 diabetes later in life. New research out of the Institute for Clinical Evaluative Sciences (ICES) has found that even women with mild abnormalities in their blood sugar during pregnancy, previously thought not to have any clinical significance, are 2.5 times more likely to develop type 2 diabetes compared to those who had completely normal glucose testing.

"These results show that even a mild abnormality in glucose testing during pregnancy is associated with an increased risk of diabetes later in life. Although we already know that women who've had gestational diabetes need to be monitored, the study suggests that even women with mild glucose abnormalities might benefit from diabetes prevention and detection strategies," says Baiju Shah, ICES researcher.

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Author affiliations: ICES (Shah), Mount Sinai Hospital (Retnakaran), Sunnybrook Health Sciences Centre (Shah); Ontario.

The study "Abnormal Screening Glucose Challenge Test in Pregnancy and Future Risk of Diabetes in Young Women" is in the May, 2009 issue of Diabetic Medicine.

More detailed study findings on the ICES website: www.ices.on.ca

ICES is an independent, non-profit organization that uses population-based health information to produce knowledge on a broad range of health care issues. Our unbiased evidence provides measures of health system performance, a clearer understanding of the shifting health care needs of Ontarians, and a stimulus for discussion of practical solutions to optimize scarce resources. ICES knowledge is highly regarded in Canada and abroad, and is widely used by government, hospitals, planners, and practitioners to make decisions about care delivery and to develop policy.



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