TABLE 2.

Prevalence of Overweight and Underweight and Mean BMI at 4 Years of Age, by Breastfeeding Duration, Pediatric Nutrition Surveillance System Cohort, 1988–1997

Breastfeeding DurationnOverweight, %Underweight, %BMI
MeanStandard Deviation
Never breastfed126 01813.65.016.32.03
<1 mo17 46613.73.916.31.93
1–2.9 mo14 38812.83.916.31.93
3–5.9 mo8 50012.44.016.31.87
6–11.9 mo7 16911.33.516.21.81
≥12 mo3 76311.04.516.11.81