Table 5.
Significance of gestational age (<32 weeks) in the multivariable cox proportional hazard model when the model is adjusted for sex and admission weight (1,000–1,499 g) was not entered to the model.
| Factors | Survival status | CHR (95% CI) | AHR (95% CI) | P-value | |
|---|---|---|---|---|---|
| Censored | event | ||||
| Perinatal asphyxia | |||||
| No | 358 | 147 | 1 | 1 | |
| Yes | 17 | 20 | 3.44 (2.51; 4.52) | 2.56 (1.50; 4.37) | 0.001 |
| Jaundice | |||||
| No | 234 | 109 | 1 | 1 | |
| Yes | 141 | 58 | 2.41 (1.52, 6.62) | 3.17 (1.21, 6.52) | 0.034 |
| KMC | |||||
| No | 219 | 155 | 1 | 1 | |
| Yes | 156 | 12 | 0.16 (0.04, 0.19) | 0.11 (0 0.02; 0.24) | 0.023 |
| Time of breast feeding | |||||
| Within 1 h | 182 | 54 | 0.68 (0.48; 0.92) | 0.37 (0.28; 0.67) | 0.003 |
| >1 h | 193 | 114 | 1 | 1 | |
| Admission weight (n = 387) | |||||
| 1,500–2,499 | 267 | 73 | 4.57 (2.31; 7.83) | 7.23 (3.23, 9.88) | 0.000 |
| >=2,500 | 42 | 5 | 1 | 1 | |
| Gestational age | |||||
| <32 weeks | 54 | 64 | 0.41 (0.23; 0.68) | 5.78 (4.03; 8.23) | 0.026 |
| >=32 weeks | 321 | 103 | 1 | 1 | |
| RDS | |||||
| No | 272 | 56 | 1 | 1 | |
| Yes | 103 | 111 | 3.12 (2.13; 4.56) | 4.37 (2.36; 5.61) | 0.012 |
| 1st min Apgar | |||||
| 0–3 | 7 | 15 | 0.11 (0.32, 0.60) | 0.25 (0.14, 1.24) | 0.32 |
| 4–6 | 111 | 66 | 0.87 (0.15; 0.94) | 0.34 (0.15; 7.55) | 0.17 |
| 7–10 | 257 | 86 | 1 | 1 | |
| Sex | |||||
| Male | 248 | 85 | 1 | 1 | |
| Female | 173 | 36 | 2.54 (0.43, 3.87) | 1.92 (0.26, 6.78) | 0.25 |