Sample Characteristics for Maternity-Care Practices According to Timing of Breastfeeding Termination: IFPS II (N = 1907)

VariableBreastfed for <6 wk (n = 274)Breastfed for ≥6 wk (n = 1633)
Gender of child, %
Age of mother, mean (SD), ya27.0 (5.8)29.5 (5.1)
Race/ethnicity of the mother, %
    Asian/Pacific Islander/other2.65.0
Education of mother, %a
    ≤4 y of high school29.214.5
    1–3 y of college48.539.3
    ≥4 y of college22.346.2
Household income, %a
    Less than $20 00022.610.0
    $20 000–$39 99931.028.8
    $40 000–$74 99929.640.3
    $75 000 or more16.820.9
Marital status, %a
    Divorced or separated4.73.0
    Never married29.211.8
Previous births, %a
No. of cigarettes smoked per day prenatally, %a
No. of friends and relatives who breastfed, %a
    None or don't know18.69.1
Mother's prenatal intention to work after birth, %a
Prenatal attitudes toward breastfeeding, %
    Infant formula as good as breast milka
        Agree or unsure44.525.8
    If breastfed, child less likely to become obesea
        Disagree or unsure69.052.0
  • The sample was limited to women who initiated breastfeeding and intended to breastfeed for >2 months, with complete data on all variables.

  • a Significant differences between 2 groups of breastfeeding duration: P < .05.