Figure 1.

Prevalence of low energy reporting according to pregravid body mass index (BMI) and adequacy of gestational weight gain in phase 3 of the Pregnancy, Infection, and Nutrition Study, North Carolina, 2001–2005. Striped columns, inadequate gestational weight gain; solid columns, adequate gestational weight gain; cross-hatched columns, excessive gestational weight gain. The horizontal line represents the overall prevalence of low energy reporting in the study population (32.8%). Bars, upper confidence limit for binomial proportions using normal approximation.