Figure 2. Maternal pre-pregnancy body mass index (BMI) (kg/m2) by maternal race/ethnicity.
Boxplots of maternal pre-pregnancy BMI (kg/m2) were derived, stratified by maternal race/ethnicity (Black: Black/Black-Hispanic; Hispanic: non-Black Hispanic; White: non-Hispanic White). Bottom and top of boxes denote 25th percentile (Q1) and 75th percentile (Q3) of the distribution; thick line within boxes denote median. Whiskers of denote [Q1 – 1.5*IQR] and [Q3 + 1.5*IQR]; dark black dots represent potential extreme values. IQR: interquartile range.
