Table 1 Percentage and incidence rate of mortality among newborns according to birth weight strata in the municipality of Porto Alegre (2000–2015)
Total | Mortality | P | IR | CI 95% | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
No | Yes | Total | ||||||||
N | % | N | % | N | % | |||||
500–999 g | 596 | 45.0 | 729 | 55.0 | 1325 | 100 | < 0.001 | 207.04 | 186.81 | 229.47 |
1000–1499 g | 1884 | 89.1 | 231 | 10.9 | 2115 | 100 | < 0.001 | 41.1 | 35.31 | 47.83 |
1500—2499 g | 19,536 | 98.5 | 304 | 1.50 | 19,840 | 100 | < 0.001 | 5.76 | 4.99 | 6.65 |
2500—2999 g | 64,032 | 99.5 | 319 | 0.50 | 64,351 | 100 | < 0.001 | 1.86 | 1.61 | 2.15 |
3000—3999 g | 17,5275 | 99.7 | 467 | 0.30 | 175,742 | 100 | < 0.001 | 1 | ─ | ─ |
≥ 4000 g | 14,571 | 99.7 | 38 | 0.30 | 14,609 | 100 | 0.899 | 0.97 | 0.7 | 1.36 |
Total | 275,894 | 99.2 | 2088 | 0.80 | 277,982 | 100 | ─ | ─ | ─ | ─ |