Table 1. Sociodemographic characteristics, obstetric antecedents; characteristics of pregnancy, delivery and newborn in cohorts of pregnant women. Petropolis and Queimados, RJ, Southeastern Brazil, 2007-2008.
| Variable | Total |
|
|---|---|---|
| n | % | |
| Social class | ||
| C + B | 862 | 66.4 |
| E + D | 436 | 33.6 |
| Race/Skin color | ||
| White | 440 | 33.9 |
| Mixed race | 557 | 42.9 |
| Black | 301 | 23.2 |
| Marital status | ||
| Partner | 957 | 73.7 |
| No partner | 341 | 26.3 |
| Paid job | ||
| No | 775 | 59.7 |
| Yes | 523 | 40.3 |
| Prior history of perinatal death, low birth weight or prematurity* | ||
| No | 635 | 87.2 |
| Yes | 93 | 12.8 |
| Parity | ||
| Primipara | 570 | 43.9 |
| 2 to 3 | 558 | 43.0 |
| 4 or more | 170 | 13.1 |
| Pregestational nutritional status | ||
| Low weight | 96 | 8.9 |
| Eutrophic | 768 | 71.2 |
| Overweight | 214 | 19.9 |
| Adequacy of gestational weight gain | ||
| Insufficient | 358 | 32.5 |
| Adequate | 330 | 30.0 |
| Excessive | 412 | 37.5 |
| Adequacy of prenatal care | ||
| More than adequate | 508 | 39.2 |
| Adequate | 436 | 33.7 |
| Inadequate | 351 | 27.1 |
| Gestational hypertensive | ||
| No | 1,051 | 81.0 |
| Yes | 246 | 19.0 |
| Gestational diabetes mellitus | ||
| No | 1,266 | 97.5 |
| Yes | 32 | 2.5 |
| Smoking in pregnancy | ||
| No | 1,141 | 88.0 |
| Yes | 155 | 12.0 |
| Delivery type | ||
| Vaginal | 723 | 55.7 |
| Cesarian section | 575 | 44.3 |
| Mean | SD | |
| Age (in years) | 24.7 | 6.1 |
| Years of education | 7.8 | 2.9 |
| Birth weight (in grams) | 3.25 | 444.8 |
*
Data do not include primiparas.