Table 3 Factors associated with breastfeeding maintenance at 24 months in adolescent mothers. Analysis of variables subjected to Poisson hierarchical regression analysis

 ≥18 years

-

 ≥22 years

1.59 (1.06–2.40)^*

 ≥8 years

1.32 (0.88–1.99)

 Black/brown

-

 Multiparous

1.79 (1.17–2.74)^*

Cohabitation with partner at beginning of study

-

Cohabitation with maternal grandmother at beginning of study

-

Planned pregnancy

1.45 (0.84–2.51)

 Did not smoke

1.47 (0.93–2.34)

 ≥7 visits

-

Received prenatal guidance on breastfeeding

–

Participated in prenatal classes/groups

–

 Vaginal

-

 Female

–

 ≥3200 g

–

 ≥24 months

-

Exposed to intervention

–

Mother worked/studied in the first year of life

–

Maternal grandmother supports breastfeeding

3.33 (0.79–13.92)

Partner supports breastfeeding

1.79 (0.49–6.52)

 Does not use

2.05 (1.07–3.92)^*

Exclusive breastfeeding duration (days)

1.0 (0.996–1.004)