Table 5.

Cox Regression Analysis of Variables Associated with Breastfeeding Duration

VariableHazard Ratio (95% Confidence Intervals) for Shortening of Breastfeeding Duration
CrudeAdjusted for Age*Adjusted for EducationAdjusted for Age and education
Pacifier Use
 Never/early stop1.001.001.001.00
 Occasionally1.22 (0.90–1.66)1.17 (0.86–1.58)1.08 (0.79–1.47)1.07 (0.79–1.47)
 Often1.69 (1.33–2.14)1.69 (1.33–2.15)1.61 (1.27–2.05)1.62 (1.28–2.07)
 Frequent2.28 (1.61–3.23)2.33 (1.64–3.30)2.11 (1.48–2.99)2.17 (1.53–3.09)
Education
 ≥4 y university1.001.00
 1–3 y university1.19 (0.93–1.52)1.12 (0.87–1.44)
 No university1.62 (1.26–2.08)1.42 (1.07–1.89)
  • * Maternal Age, continuous variable.

  • Education, stratified.