Risk factor (Valid cases) | Â | Total | Survived (%) | Died (%) | P Value | Odds ratio | 95% CI of Odds Ratio |
---|---|---|---|---|---|---|---|
HMD (437) | Yes | 299 | 190 (63.5) | 109 (36.5) | < 0.001 | 0.33 | 0.20 - 0.55 |
 | No | 138 | 116 (84.1) | 22 (15.9) |  |  |  |
Mechanical ventilation (474) | Yes | 99 | 71 (71.7) | 28 (28.3) | 0.76 | 1.08 | 0.66 - 1.76 |
 | No | 375 | 263 (70.1) | 112 (29.9) |  |  |  |
Nasal CPAP (474) | Yes | 96 | 80 (83.3) | 16 (16.7) | 0.002 | 2.44 | 1.37 - 4.35 |
 | No | 378 | 254 (67.2) | 124 (32.8) |  |  |  |
Surfactant therapy (474) | Yes | 90 | 73 (81) | 17 (19) | 0.014 | 2.02 | 1.15 - 3.58 |
 | No | 384 | 261 (68) | 123 (32) |  |  |  |
Sepsis (445) | Yes | 62 | 40 (64.5) | 22 (35.5) | 0.085 | 0.61 | 0.34 - 1.08 |
 | No | 383 | 287 (74.9) | 96 (25.1) |  |  |  |
Gram Negative (474) | Yes | 37 | 21 (56.8) | 16 (43.2) | 0.057 | 0.52 | 0.26 - 1.03 |
 | No | 437 | 313 (71.6) | 124 (28.4) |  |  |  |
Gram Positive (474) | Yes | 28 | 23 (82.1) | 5 (17.9) | 0.163 | 1.99 | 0.74 - 5.36 |
 | No | 446 | 311 (69.7) | 135 (30.3) |  |  |  |
PDA (474) | Yes | 26 | 18 (69) | 8 (31) | 0.887 | 0.94 | 0.4 - 2.21 |
 | No | 448 | 316 (71) | 132 (29) |  |  |  |
Hypotension (474) | Yes | 23 | 7 (30) | 16 (70) | < 0.001 | 0.166 | 0.07 - 0.41 |
 | No | 451 | 327 (73) | 124 (27) |  |  |  |
NEC grade 2/3 (474) | Yes | 26 | 9 (35) | 17 (65) | < 0.001 | 0.2 | 0.09 - 0.46 |
 | No | 448 | 325 (73) | 123 (27) |  |  |  |
IVH (328) | Â | Â | Â | Â | 0.004 | Â | Â |
 | No | 253 | 209 (83) | 44 (17) |  | 1 |  |
 | Gr 1 | 11 | 8 (72.7) | 3 (27.3) |  | 0.56 | 0.14 - 2.20 |
 | Gr 2 | 40 | 25 (62.5) | 15 (37.5) |  | 0.35 | 0.17 - 0.72 |
 | Gr 3 | 16 | 12 (75) | 4 (25) |  | 0.63 | 0.19 - 2.05 |
 | Gr 4 | 4 | 1 (25) | 3 (75) |  | 0.07 | 0.01 - 0.69 |
 | PVL | 4 | 2 (50) | 2 (50) |  | 0.21 | 0.03 - 1.53 |