Table 1.
Characteristics of newborns
| Total | GA ≤35 weeks | GA >35 weeks | |
|---|---|---|---|
| Screening cases (%) | 4128 | 2319 (56.2) | 1809 (43.8) |
| Male sex (%) | 2418 (58.6) | 1338 (32.4) | 1080 (26.2) |
| Gestational age (weeks) | 34.7 ± 3.9 | 31.9 ± 2.5 | 38.4 ± 1.8 |
| Age at screening (hours) | 25 (2–506) | 24 (2–278) | 27 (2–506) |
| Birthweight (g) | 2366.6 ± 861.6 | 1781.4 ± 515.1 | 3116.7 ± 593.4 |
| BW ≤ 1000 g (%) | 113 (2.7) | ||
| 1000 < BW ≤ 1500 g (%) | 662 (16.1) | ||
| BW > 1500 g (%) | 3353 (81.2) | ||
| Test‐positive cases (%) | 2866 (69.4) | 1670 (40.5) | 1196 (29.0) |
| Pulse oximetry alone (%) | 2308 (55.9) | 1390 (33.7) | 918 (22.2) |
| Clinical evaluation alone (%) | 963 (23.3) | 486 (11.8) | 477 (11.6) |
| Pulse oximetry or clinical evaluation (%) | 2485 (60.2) | 1461 (35.4) | 1024 (24.8) |
| Echocardiography test (%) | 3092 (74.9) | 1891 (45.8) | 1201 (29.1) |
| Oxygen therapy (%) | 2402 (58.2) | 1430 (34.6) | 972 (23.6) |
| NICU stay (days) | 13.7 ± 17.7 | 25.4 ± 21.8 | 6.3 ± 8.2 |