Exposure | Control (n = 492) | Cases (n = 246) | OR | p-value |
Size of baby at birth | ||||
Smaller than average | 12.2 | 20.3 | 2.5 (1.5 - 4.1) | <0.001 |
Average | 84.1 | 67.9 | 1 | |
Larger than average | 3.5 | 11.8 | 4.1 (2.0 - 8.3) | <0.001 |
Failure to develop spontaneous breathing | 6.9 | 70.6 | 38.4 (18.9 - 78.1) | <0.001 |
Color of the baby turned blue after 5 minutes of birth | 2.3 | 67.2 | 301 (42 - 2147) | <0.001 |
Difficult breathing after birth | 9.8 | 81.6 | 79 (29 - 214) | <0.001 |
Chest in drawing after birth | 9.1 | 17.9 | 2.3 (1.5 - 3.8) | <0.001 |
Nostrils flare with breathing | 38.2 | 27.4 | 0.4 (0.3 - 0.7) | <0.001 |