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USPSTF Recommends Gestational DM Screening After 24 Weeks
Few data available for gestational diabetes screening before 24 gestational weeks

TUESDAY, May 28 (HealthDay News) -- The U.S. Preventive Services Task Force (USPSTF) recommends use of the 50-g oral glucose challenge test (OGCT) for screening pregnant women for gestational diabetes mellitus (GDM) after 24 weeks of gestation. This Recommendation Statement is based on an evidence review published online May 28 in the Annals of Internal Medicine.

Lois Donovan, Ph.D., from the University of Calgary in Canada, and colleagues used data from 51 cohort studies to examine the screening methods for GDM.

The researchers found that, at a threshold of 7.8 mmol/L, the sensitivity for the OGCT was 70 to 88 percent; specificity was 69 to 89 percent; positive likelihood ratio was 2.6 to 6.5; and negative likelihood ratio was 0.16 to 0.33. Test characteristics were 88 to 99 percent, 66 to 77 percent, 2.7 to 4.2, and 0.02 to 0.14, respectively, at a threshold of 7.2 mmol/L. Poorer test characteristics were seen for glycated hemoglobin level versus fasting plasma glucose or the OGCT. For screening tests before 24 gestational weeks, there were few data available. The draft Recommendation Statement is available for comment from May 28 to June 24, 2013.

"It's important to remember that each case of gestational diabetes affects two people: the expectant mother and the baby," Task Force member Wanda K. Nicholson, M.D., M.P.H., said in a statement. "We now have good evidence that screening expectant mothers for gestational diabetes after 24 weeks provides a substantial benefit, with few to no harms, leading to healthier moms and babies."

Draft Recommendation Statement
Comment on Recommendations
Background Review

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