Table 3.
Variable | Birth weight | Gestational age | |||||||||
<1000 g | 1000–1500 g | >1500–2000 g | >2000–<2500 g | ≥2500 g | <28 weeks | 28–32 weeks | 32–34 weeks | 34–<37 weeks | ≥37 weeks | ||
Total (inborn) | n | 585 | 1541 | 2679 | 4522 | 20 572 | 560 | 2144 | 2319 | 3913 | 20 963 |
Died | n | 394 | 449 | 303 | 163 | 266 | 391 | 508 | 244 | 165 | 267 |
% | 67 | 29 | 11 | 4 | 1 | 70 | 24 | 11 | 4 | 1 | |
Survived | n | 191 | 1092 | 2376 | 4359 | 20 306 | 169 | 1636 | 2075 | 3748 | 20 696 |
Screened | n | 172 | 1040 | 1033 | 1186 | 14 | 168 | 1147 | 926 | 1199 | 5 |
Screened/survived | % | 90 | 95 | 43 | 27 | 0 | 99 | 70 | 45 | 32 | 0 |
No ROP | n | 137 | 966 | 978 | 1159 | 14 | 132 | 1074 | 874 | 1169 | 5 |
ROP 1–2 | n | 28 | 57 | 53 | 27 | 0 | 27 | 62 | 46 | 30 | 0 |
ROP 3–5 | n | 7 | 17 | 2 | 0 | 0 | 9 | 11 | 6 | 0 | 0 |
Incidence of any ROP | % | 20 | 7 | 5 | 2 | 0 | 21 | 6 | 6 | 3 | 0 |
Incidence of severe ROP | % | 4 | 2 | 0 | 0 | 0 | 5 | 1 | 1 | 0 | 0 |
These data come from 13 of 34 hospitals.
ROP, retinopathy of prematurity.