Obstetrician/Gynecologists' Knowledge, Attitudes, and Practices Regarding Weight Gain During Pregnancy

Objective: Assess obstetrician–gynecologists' knowledge and counseling practices regarding gestational weight gain (GWG). Materials and Methods: Questionnaire studies were conducted in 2012 and 2014 sent to practicing obstetrician–gynecologists. Results: Response rates were 111/236 (47%) and 206/474 (43.5%). The majority of respondents agreed (50.0%) or strongly agreed (26.6%) that excessive GWG is a major health concern, often or always calculate the body mass index (BMI) of their patients (79.1%), and use BMI to modify their weight gain recommendations (78.5%). The physicians reported that, on average, 7.8% of pregnant patients gained too little weight, 47.3% gained an appropriate amount, and 45.1% gained too much. A greater proportion of patients with private insurance was associated with physician perception of fewer gaining excessive weight (r = −0.205, n = 198, p = 0.004), whereas high proportions with Medicaid or uninsured were positively correlated with a perception of excessive GWG (r = 0.206 and 0.187, n = 198, p = 0.004 and 0.008, respectively). A majority of physicians (55.1%) were not confident in their ability to affect their patients' prenatal weight gain. Confident physicians exhibited more appropriate practice efforts (e.g., use prepregnancy BMI; 83.6% vs. 74.8%, p = 0.009) and were more likely to inform their patients about the increased risk of pregnancy complications (90.8% vs. 69.7%, p = 0.001) and possible harms to their baby (76.9% vs. 61.0%, p = 0.001) from excessive GWG. Conclusions: Study participants perceived excessive GWG to be a significant problem, but had low confidence in their ability to address it.