Table 1. Sociodemographic, obstetric and prenatal characteristics, maternal habits, breastfeeding history, partner's schooling and birth data of the 231 mother-baby pairs. Porto Alegre, RS, Brazil, 2017.
| Variables | Sample (n=158) n (%) |
Losses (n=73) n (%) |
p-value |
|---|---|---|---|
| Maternal age | 0.405 | ||
| < 20 years old | 36 (22.8) | 15 (20.5) | |
| 20 to 35 years old | 103 (65.2) | 53 (72.6) | |
| ≥ 35 years old | 19 (12.0) | 5 (6.8) | |
| Self-declared skin color | 0.578 | ||
| White | 97 (61.4) | 42 (57.5) | |
| Black/Brown | 61 (38.6) | 31 (42.5) | |
| Years of complete schooling of the woman | 0.600 | ||
| < 8 years | 32 (20.3) | 17 (23.3) | |
| ≥ 8 years | 126 (79.7) | 56 (76.6) | |
| Working outside the home | 0.485 | ||
| Yes | 68 (43.0) | 35 (47.9) | |
| No | 90 (57.0) | 38 (52.1) | |
| Has a partner | 0.360 | ||
| Yes | 139 (88.0) | 61 (83.6) | |
| No | 19 (12.0) | 12 (16.4) | |
| Years of complete schooling of the partner | 0.219 | ||
| < 8 years | 24 (15.2) | 11 (15.1) | |
| ≥ 8 years | 107 (67.7) | 50 (68.5) | |
| Did not know how to inform | 8 (5.1) | 0 (0.0) | |
| Lives with* | |||
| Partner | 129 (92.8) | 56 (91.8) | 0.804 |
| Mother | 36 (22.8) | 21 (28.8) | 0.327 |
| Mother-in-law | 19 (13.7) | 3 (4.9) | 0.069 |
| Family income† | 0.860 | ||
| < 2 minimum wages | 47 (29.7) | 22 (30.1) | |
| 2 to 4 minimum wages | 66 (41.8) | 28 (38.4) | |
| > 4 minimum wages | 45 (28.5) | 23 (31.5) | |
| Prenatal consultations‡ | 0.657 | ||
| < 6 consultations | 13 (8.4) | 7 (10.3) | |
| ≥ 6 consultations | 141 (91.6) | 61 (89.7) | |
| Information on breastfeeding in the prenatal and/or group | 0.580 | ||
| Yes | 61 (38.6) | 23 (31.5) | |
| No | 95 (60.1) | 49 (67.1) | |
| Did not do prenatal/group | 2 (1.3) | 1 (1.4) | |
| Smoking during pregnancy | 0.166 | ||
| Yes | 26 (16.5) | 7 (9.6) | |
| No | 132 (83.5) | 66 (90.4) | |
| Drug use during pregnancy | 0.948 | ||
| Yes | 2 (1.3) | 1 (1.4) | |
| No | 156 (98.7) | 72 (98.6) | |
| Breastfeeding time of the last child | 0.092 | ||
| No previous child | 108 (68.4) | 49 (67.1) | |
| < 6 months | 34 (21.5) | 10 (13.7) | |
| ≥ 6 months | 16 (10.1) | 14 (19.2) | |
| Route of birth | 0.778 | ||
| Vaginal | 94 (59.5) | 42 (57.5) | |
| Cesarean section | 64 (40.5) | 31 (42.5) | |
| Gender of the baby | 0.123 | ||
| Female | 63 (39.9) | 37 (50.7) | |
| Male | 95 (60.1) | 36 (49.3) | |
| Baby classification§ | 0.280 | ||
| AGA|| | 127 (80.4) | 60 (82.2) | |
| SGA¶ | 11 (11.0) | 8 (11.0) | |
| BGA** | 20 (12.7) | 5 (6.8) |
*
The results can exceed 100% as there may be more than one answer;
†
According to the 2017 minimum wage (R$ 954,00);
‡
Disregarding women who did not have a prenatal booklet;
§
According to Lubchenco's Curve( 14 );
||
AGA = Adequate for gestational age;
¶
SGA = Small for gestational age;
**
BGA = Big for gestational age