1st Trimester Wt Gain

Early Weight Gain in Pregnancy increases Risk of Developing Gestational Diabetes

On February 22, 2010 researchers published data in the medical journal Obstetrics and Gynecology that clearly suggests that excessive weight gain in the first trimester of pregnancy increases a woman’s risk of developing gestational diabetes (GD).

The study looked at 345 pregnant women with GD and 800 pregnant women without GD who delivered between 1996 and 1998. The groups were multi-ethnic and from various socioeconomic backgrounds. They were screened for GD between weeks 24 and 28 of pregnancy and gestational diabetes was diagnosed according to the criteria of the National Diabetes Data Group plasma glucose cut-offs for the 100-g, 3-hour oral glucose tolerance test.

The data showed that the risk for GD increased with the more weight a woman gained during her pregnancy. The researchers found that women who gained 0.6-0.88lbs/week or more than 0.89lb/we were at increased risk of developing GD. Even more important, those women who gained a lot of weight during their first trimester were at increased risk of developing GD. These associations were most pronounced in overweight or obese women and non-white women.


Gestational Weight Gain and Risk of Gestational Diabetes Mellitus

Hedderson, Monique M. PhD; Gunderson, Erica P. PhD; Ferrara, Assiamira MD, PhD

Obstetrics & Gynecology: March 2010 – Volume 115 – Issue 3 – pp 597-604