TABLE 1

Characteristics of the Study Sample According to Infants' Age at Weaning

CharacteristicTotal (N = 1323), %Infants' Age When Breastfeeding Was Completely Stopped, mo
<1 (n = 320), %1–2 (n = 302), %3–5 (n = 268), %6–8 (n = 183), %≥9 (n = 250), %
Age, ya
    18–2422.635.324.821.313.711.6
    25–2934.032.233.834.735.035.2
    30–3428.021.924.529.532.235.6
    ≥3515.310.616.914.619.117.6
Marital statusa
    Unmarried21.330.928.520.211.58.8
    Married78.769.171.579.988.591.2
Paritya
    Primiparous32.741.633.433.626.224.4
    Multiparous67.358.466.666.473.875.6
Educationa
    High school or less20.028.122.516.016.413.2
    Some college40.647.544.038.832.835.2
    College graduate39.524.433.445.250.851.6
Income as percentage of federal poverty levela
    <185%39.046.642.034.332.835.2
    185%–349%35.031.933.834.739.337.6
    ≥350%26.021.624.231.027.927.2
Postpartum WIC participationa
    No62.148.853.665.379.872.8
    Yes37.951.346.434.720.227.2
Race
    Non-Hispanic white84.184.779.584.085.887.6
    Non-Hispanic black4.46.64.34.52.72.8
    Hispanic7.36.99.37.86.65.6
    Other4.21.97.03.74.94.0
Regiona
    Northeast15.313.416.614.614.218.0
    Midwest30.834.729.531.729.028.0
    South33.237.535.432.130.628.0
    West20.614.418.521.626.226.0
  • a P < .01 for association between characteristic and weaning age.