Michigan State University Researchers Determined That Women Who Are Overweight Or Obese Are Less Likely To Become Pregnant From Fertility Treatments Than Women Who Are "Normal" Weight. Keep Reading For The Study Details.
Michigan State University researchers determined that women who are overweight or obese are less likely to become pregnant from fertility treatments than women who are "normal" weight. The researchers looked at the information from 150,000 fertility treatment cycles that occurred during 2007 and 2008. The treatments took place at 361 different clinics. The report included the following information for each woman:
- Whether the cycle was canceled
- Whether the cycle led to a pregnancy
- Whether that pregnancy ended early in a miscarriage or stillbirth
- Whether woman gave birth to a live baby
- Height and weight of the women
- Normal weight women had a 43% chance of becoming pregnant using their own (fresh) eggs
- "Very heavy" women had a 36% chance of becoming pregnant using their own (fresh) eggs
- Once pregnant, the heaviest women were twice as likely to lose the baby as normal weight women
"Weight isn't everything, but it's an important factor that we have control over. Fix it now, because even a little bit (of weight loss) can make a big difference," said Brian Cooper of Mid-Iowa Fertility in Clive, who wasn't involved in the study. He noted that age and smoking are bigger factors in fertility, but weight matters, too.