Table 2 Distribution of maternal and neonatal variables in the studied population according to neonatal death, São Paulo State, Brazil, 2004–2013
Neonatal Death | ||
|---|---|---|
Yes ( n = 48,309) | No ( n = 6,056,883) | |
Maternal age < 20 years | 21 % | 16 % |
Maternal age ≥ 35 years | 14 % | 13 % |
Unmarried mother | 59 % | 52 % |
≤ 7 years of school | 30 % | 25 % |
8–11 years of school | 56 % | 56 % |
≥ 12 years of school | 14 % | 19 % |
Primiparity | 44 % | 42 % |
No prenatal visits | 7 % | 1 % |
1–3 prenatal visits | 19 % | 4 % |
4–6 prenatal visits | 36 % | 19 % |
≥ 7 prenatal visits | 37 % | 75 % |
Multiple gestation | 10 % | 2 % |
Cesarean section | 51 % | 57 % |
Non-hospital delivery | 1 % | 0.5 % |
GA 22–27 weeks | 33 % | 0.2 % |
GA 28–31 weeks | 19 % | 1 % |
GA 32–36 weeks | 20 % | 8 % |
GA 37–41 weeks | 28 % | 91 % |
GA ≥ 42 weeks | 0.4 % | 0.8 % |
Male | 56 % | 51 % |
BW 400–999 g | 38 % | 0.2 % |
BW 1000–1499 g | 17 % | 1 % |
BW 1500–2499 g | 20 % | 8 % |
BW 2500–2999 g | 11 % | 25 % |
BW 3000–3999 g | 13 % | 62 % |
BW ≥ 4000 g | 1 % | 4 % |
1st minute Apgar 0–6 | 68 % | 6 % |
5th minute Apgar 0–6 | 40 % | 1 % |
Congenital malformations | 27 % | 1 % |