Birth weight among women whose GWG was in line with recommendations
(11–16 kg for non-obese women; 5–9 kg for obese women), by pre-pregnancy BMI.
Abbreviations: GWG, gestational weight gain; BMI, body mass index (calculated as the
weight in kilograms divided by the square of height in meters). Boxes show medians
and interquartile ranges. Error bars show ranges. Circles show out liers. Birth weight was
significantly higher among women in obesity classes II and III than among non-obese
women (P = 0.0058