To evaluate factors associated with initiation and duration of breastfeedin
g in Italy, 1601 (73%) respondents among 2192 randomly selected mothers wer
e interviewed within 1 mo of delivery. Mothers who started breastfeeding (8
5%) were followed-up for 12 mo. A compliance rate of 100% was obtained. At
multiple logistic regression analysis, mother having been breastfed herself
(p < 0.01), nursing guidance in the maternity ward (p = 0.01) and higher s
ocial class (p = 0.03) were positively associated with initiation of breast
feeding. We found that 42%, 19%, 10% and 4% mothers were still breastfeedin
g at 3, 6, 9 and 12 mo after delivery, respectively. Cox multiple regressio
n analysis showed a negative association between duration of breastfeeding
and pacifier use (p < 0.01), and a positive association with a higher level
of maternal education (p = 0.04). Formula supplementation in the maternity
ward (given to 30% of infants) was associated with a shorter duration of e
xclusive breastfeeding (p = 0.03). Mothers need support with breastfeeding,
particularly those from lower social backgrounds and with lower levels of
education. Early use of the pacifier should be discouraged.