Table 6.
Significance of admission weight (1,000–1,499 g) in the multivariable cox proportional hazard model when the model was adjusted for sex and gestational age (<32 weeks) was not entered to the model.
| Covariate | 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 (1.67; 6.88) | 0.021 |
| Jaundice | |||||
| No | 234 | 109 | 1 | 1 | |
| Yes | 141 | 58 | 2.41 (1.52, 6.62) | 4.17 (2.35, 7.81) | 0.041 |
| KMC | |||||
| No | 219 | 155 | 1 | 1 | |
| Yes | 156 | 12 | 0.16 (0.04, 0.19) | 0.21 (0 0.07; 0.68) | 0.013 |
| Time of breast feeding | |||||
| Within 1 h | 182 | 54 | 0.68 (0.48; 0.92) | 0.47 (0.19; 0.58) | 0.004 |
| >1 h | 193 | 114 | 1 | 1 | |
| Admission weight (g) (n = 542) | |||||
| 1,000–1,499 | 35 | 120 | 1.33 (2.31; 6.81) | 4.65 (2.27, 6.70) | 0.016 |
| 1,500–2,499 | 267 | 73 | 3.45 (2.31; 6.81) | 3.11 (2.18, 9.21) | 0.039 |
| >=2,500 | 42 | 5 | 1 | 1 | |
| RDS | |||||
| No | 272 | 56 | 1 | 1 | |
| Yes | 103 | 111 | 3.12 (2.13; 4.56) | 2.41 (1.88; 4.33) | 0.027 |
| 1st min APGAR score | |||||
| 0–3 | 7 | 15 | 0.11 (0.32, 0.60) | 0.75 (0.42, 1.99) | 0.54 |
| 4–6 | 111 | 66 | 0.87 (0.15; 0.94) | 0.88 (0.24; 7.55) | 0.84 |
| 7–10 | 257 | 86 | 1 | 1 | |
| Sex | |||||
| Male | 248 | 85 | 1 | 1 | |
| Female | 173 | 36 | 2.54 (0.43, 3.87) | 1.75 (0.14, 3.62) | 0.65 |