Table 1.
Demographic characteristics of newborns
| Variables | Total N = 44,147 |
Normal N = 43,689 |
Mild CHD N = 339 |
Moderate CHD N = 70 |
Severe CHD N = 49 |
|---|---|---|---|---|---|
| Gestational age (weeks) | |||||
| < 37 | 2691 (6.1%) | 2668 (6.1%) | 14 (4.1%) | 6 (8.6%) | 3 (6.1%) |
| 37-40 | 37,229 (84.3%) | 36,841 (84.3%) | 290 (85.6%) | 57 (81.4%) | 41 (83.7%) |
| > 40 | 4227 (9.6%) | 4180 (9.6%) | 35 (10.3%) | 7 (10.0%) | 5 (10.2) |
| Gestational age (weeks) | 39 (38-40) | 39 (38-40) | 39 (39-40) | 39 (38-39) | 39 (39-40) |
| Birth Weight (g) | 3420 (3130-3720) | 3420 (3130-3720) | 3480 (3170-3800) | 3245 (3000-3515) | 3440 (3160-3790) |
| Age at screening (hours) | 20 (15.0-24.0) | 20 (15.0-24.0) | 20 (16.0-24.0) | 19.5 (15.8-24.0) | 19 (15.5-24.0) |
| Delivery method | |||||
| Natural birth | 24,159 (54.7%) | 23,894 (54.7%) | 205 (60.4%) | 35 (50.0%) | 25 (51.0%) |
| Cesarean section | 19,946 (45.2%) | 19,754 (45.2%) | 133 (39.2%) | 35 (50.0%) | 24 (49.0%) |
| Natural birth to cesarean section | 42 (0.1%) | 41 (0.1%) | 1 (0.2%) | 0 | 0 |