| Baby’s characteristics | Outcome of the preterm baby | Total | COR (95% CI) | p-value | |
| Survived (n, %) | Died (n, %) | ||||
| Gender |
|
|
|
|
|
| Male | 73 (80.2) | 18 (19.8) | 91 (100) | 1.579 (0.629 - 3.963) | 0.331 |
| Female | 60 (83.3) | 12 (16.7) | 72 (1000 | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| Birth weight |
|
|
|
|
|
| Very low birth weight | 26 (60.5) | 17 (39.5) | 43 (100) | 9.154 (1.100 - 76.175) | 0.041 |
| Low birth weight | 93 (88.6) | 12 (11.4) | 105 (100) | 1.806 (0.218 - 14.989) | 0.584 |
| Normal birth weight | 14 (93.3) | 1 (6.7) | 15 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| Gestational age at birth |
|
|
|
|
|
| Less than 28 weeks | 3 (23.1) | 10 (76.9) | 13 (100) | 53.333 (10.360 - 274.558) | <0.001 |
| 28 - 33 weeks | 66 (80.5) | 16 (19.5) | 82 (100) | 3.879 (1.230 - 12.230) | 0.021 |
| 34 weeks and above | 64 (94.1) | 4 (5.9) | 68 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| Apgar score in the 5th minutes |
|
|
|
|
|
| Less than 7 | 66 (73.3) | 24 (26.7) | 90 (100) | 4.016 (1.559 - 10.573) | 0.004 |
| 7 and above | 67 (91.8) | 6 (8.2) | 73 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| Immediately cried at birth |
|
|
|
|
|
| No | 51 (71.8) | 20 (28.2) | 71 (100) | 2.812 (1.118 - 7.074) | 0.028 |
| Yes | 82 (89.1) | 10 (10.9) | 92 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| History of resuscitation |
|
|
|
|
|
| Yes | 55 (69.6) | 24 (30.4) | 79 (100) | 5.673.153 (2.175 - 14.798) | <0.001 |
| No | 78 (92.9) | 6 (7.1) | 84 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|
| History of invasive procedure |
|
|
|
|
|
| Yes | 87 (75.7) | 28 (24.3) | 115 (100) | 7.402 (1.688 - 32.465) | 0.008 |
| No | 46 (95.8) | 2 (4.2) | 48 (100) | Reference |
|
| Total | 133 (81.6) | 30 (18.4) | 163 (100) |
|
|