Table 3.
Maternal and prenatal characteristics and their relation with smoking during pregnancy, according to public maternity
| Maternal and prenatal characteristics | Maternity/City | |||||
|---|---|---|---|---|---|---|
| A - Niterói | B - Rio de Janeiro | |||||
| OR unadj a | OR aj b | 95% CI | OR unadj a | OR aj b | 95% CI | |
| Age group (years) | ||||||
| 10 - 19 | 0.59c | 0.77 | 0.38;1.54 | 0.43c | 0.44c | 0.26;0.75 |
| 20 - 34 | 1 | 1 | 1 | 1 | ||
| ≥35 | 0.68 | 0.60 | 0.23;1.53 | 0.65d | 0.55d | 0.29: 1.04 |
| Partner | ||||||
| absence | 1,26 | - | - | 1,22 | - | - |
| presence | 1 | - | - | 1 | - | - |
| Skin color | ||||||
| white | 1 | 1 | 1 | 1 | ||
| brown | 1.45d | 0.98 | 0.52;1.88 | 0.97 | 0.93 | 0.60;1.44 |
| black | 1.25 | 0.88 | 0.43;1.82 | 1.78c | 1.71c | 1.06;2.74 |
| Maternal Education Level (years of study) | ||||||
| <8 | 2.32c | 2.14c | 1.21;3.79 | 1.75c | 1.61c | 1.08;2.40 |
| ≥8 | 1 | 1 | 1 | 1 | ||
| Family income per month (USD) | ||||||
| <$88.47 | 2,48d | 1.12 | 0.38;3.27 | 1.95c | 1.33 | 0.68;2.60 |
| $88.47 to $331.47 | 2.36d | 1.57 | 0.60;4.09 | 1.39d | 1.18 | 0.67;2.10 |
| ≥$331.47 | 1 | 1 | 1 | 1 | ||
| Parity | ||||||
| primiparous | 1 | 1 | 1 | 1 | ||
| multiparous | 3.75c | 3.48c | 1.78;6.81 | 2.35c | 1.58c | 1.03;2.44 |
| Adequacy of prenatal care | ||||||
| Inadequate | 2.34c | 1.80 | 0.89;3.64 | 1.98c | 1.86c | 1.07;3.25 |
| Intermediate | 1.42 | 1.09 | 0.53;2.22 | 1.46d | 1.57 | 0.90;2.72 |
| Adequate/More than adequate | 1 | 1 | 1 | 1 | ||
CI: Confidence Interval.
ORunadj a:Unadjusted odds ratio; ORaj b:Adjusted odds ratio, cp < 0.05 and dp < 0.20.
Note: Logistic regression model (maternity A: age group, education, income, parity, adequacy of prenatal care; maternity B: age group, skin color, education, income, and parity, and adequacy of prenatal care).