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Study links 1st-trimester weight gain, diabetes risk

Study links 1st-trimester weight gain, diabetes risk

LOS ANGELES -- Women have long been told that gaining weight before pregnancy or being overweight at the start of pregnancy puts them at higher risk for gestational diabetes. But a study finds that the first trimester is the most critical time for weight gain that can increase the danger of gestational diabetes. The study, released Monday in Obstetrics & Gynecology, looked at data on an ethnically diverse group of women who delivered babies between 1996 and 1998; 345 women had gestational diabetes, and 800 who had not developed the disease served as a control group. Gestational diabetes starts during pregnancy; it can disappear after birth but affect mother and child for years.

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