TABLE 1

Demographic Characteristics of Children in the NHANES III Aged 6 to <24 Months According to Breastfeeding Status

No BF (n = 1149)FullBF<1 (n = 426)FullBF1-3 (n = 343)FullBF4-5 (n = 223)FullBF ≥6 (n = 136)
Age, %
    6 to <12 mo3537333524
    12 to <24 mo6563676576
Gender, %
    Male5154515048
    Female4946495052
Race/ethnicity, %
    White54.7a61.5a76.677.479.3
    Black26.5a9.37.37.27.8
    Mexican American8.216.4a9.46.27.2
    Other10.712.96.79.25.7
Two-parent household, %70.6a84.1a90.288.992.6
Child care ≥10 h/wk13.711.122.49.317.7
Smoke exposure, %
    Prenatal and postnatal26.7a12.013.09.86.6
    Prenatal only4.53.43.31.32.8
    Postnatal only22.811.714.412.214.0
    None46.0a72.969.376.676.6
Birth weight, mean (SE), kg3.33 (0.02)a3.42 (0.03)a3.51 (0.03)a3.51 (0.04)a3.64 (0.06)
Poverty index, mean (SE)1.7 (0.1)a2.5 (0.2)2.9 (0.2)2.8 (0.2)2.8 (0.2)
Head-of-household education, mean (SE), y11.4 (0.2)a12.6 (0.2)a13.5 (0.2)13.6 (0.4)14.1 (0.5)
Family size, mean (SE)4.4 (0.1)4.3 (0.1)4.0 (0.1)4.1 (0.1)4.2 (0.1)
  • a Statistically significant results.