Conditions that showed a trend ( p ≥ 0.05 and p < 0.1) of sustaining breastfeeding were a history of non-obstetric complications, initiation of prenatal care in the second trimester (compared to not having prenatal care), and receiving BMSs and maternal breast milk as food upon leaving the hospital (compared to receiving BMSs only).
On the other hand, prenatal care through private health services, compared to public services, showed a trend toward significance for the later introduction of CF ( p = 0.07), while birth by vaginal delivery and receiving maternal milk as food upon leaving the hospital after birth showed a trend toward significance for the earlier introduction of CF ( p = 0.05 and p = 0.09, respectively) ( Table 3 ).
The variables that were associated with a significance level <0.05 or with a tendency toward significance (<0.10) were tested in a multivariable Cox proportional hazards model.