TABLE 2

Analysis of Risk Factors for Failure to Initiate Breastfeeding and for Earlier Weaning: Missouri, 2005

VariableFailure to Initiate, aPR (95% CI)Earlier Weaning, aHR (95% CI)a
Smoking status
    Moderate/heavy smoker1.4 (1.0–1.9)1.9 (1.4–2.7)
    Light smoker1.4 (1.0–1.8)1.7 (1.3–2.4)
    Quit smoking during pregnancy1.4 (0.9–2.3)1.6 (1.1–2.6)
    Nonsmoker1.01.0
Smoker in the home
    Yes1.4 (1.0–1.8)1.0 (0.7–1.4)
    No1.01.0
Alcohol use
    Yes0.9 (0.7–1.1)1.1 (0.9–1.4)
    No1.01.0
Maternal age, y
    <201.0 (0.7–1.3)1.4 (0.9–2.0)
    20–291.01.0
    ≥300.8 (0.6–1.1)0.9 (0.7–1.1)
Maternal race
    White, other1.01.0
    Black1.0 (0.7–1.4)1.0 (0.6–1.5)
Maternal education, y
    <121.3 (1.0–1.7)1.2 (0.8–1.7)
    ≥121.01.0
Medicaid at delivery
    Yes1.4 (1.0–1.8)1.3 (1.0–1.6)
    No1.01.0
Married
    Yes1.01.0
    No1.3 (1.0–1.7)1.4 (1.1–1.9)
Prenatal care in first trimester
    Yes1.01.0
    No1.2 (0.8–1.7)1.3 (0.9–1.9)
Cesarean section
    Yes1.0 (0.8–1.3)1.1 (0.9–1.4)
    No1.01.0
Prolonged infant hospitalization or ICU
    Yes1.2 (0.9–1.6)1.1 (0.9–1.5)
    No1.01.0
BMI
    <18.51.0 (0.6–1.5)1.3 (0.8–2.0)
    18.5–24.91.01.0
    25.0–29.91.1 (0.8–1.5)1.0 (0.7–1.3)
    ≥30.01.1 (0.8–1.5)1.4 (1.1–1.9)
  • a Measured by aHR of breastfeeding termination from proportional hazard model.