| Variáveis | N | % |
| Mother age (years) <19 ≥19 |
60 187 |
24.3 75.5 |
| Mother schooling (years) ≤ 8 >8 |
124 123 |
50.2 49.8 |
| Marital status Without a partner With a partner |
91 156 |
36.8 63.2 |
| Gender Female Male |
100 147 |
40.5 59.5 |