Table 7.
Bivariable and multivariable Cox regression analysis of variables associated with ICU-mortality among patients in the SICU (N = 388)
| Variables | Categories | Outcome | CHR (95%CI) | AHR (95%CI) | p-value | |
|---|---|---|---|---|---|---|
| Dead (n = 148 ) |
Alive (n = 240) |
|||||
| Glasgow coma scale | Sever | 135 | 60 | 14.43 (6.36–32.73)* | 4.06(1.51–10.89) | 0.005 |
| Moderate | 7 | 46 | 2.50 (0.84-7.47)* | 0.97(0.30–3.15) | ||
| Mild | 6 | 134 | 1 | 1 | ||
| Mechanical ventilation | Yes | 145 | 114 | 4 (1–15)* | 12 (3–45) | 0.002 |
| No | 3 | 126 | 1 | 1 | ||
| Potassium | < 3.5 | 29 | 20 | 3.98 (2.43–6.51)* | 3.46(1.83–6.55) | < 0.001 |
| 3.5-5.0 | 36 | 198 | 1 | 1 | ||
| > 5.0 | 83 | 22 | 6.50 (4.39–9.63)* | 2.41(1.29–4.51) | 0.005 | |
| Saturation (Spo2) | < 90 | 66 | 22 | 4.26 (3.06–5.94)* | 1.66(1.10–2.48) | 0.014 |
| >=90 | 82 | 218 | 1 | 1 | ||
| Feeding | Yes | 36 | 104 | 1 | 1 | |
| No | 112 | 136 | 4.29(2.88–6.39)* | 3.56(2.20–5.78) | < 0.001 | |
| Thromboprophylaxis | Yes | 56 | 107 | 1 | 1 | |
| No | 92 | 133 | 7.07(4.62–10.81)* | 10.8(6.0419.29) | < 0.001 | |
Key: - * Significant (P-value < 0.05); CHR = Crude Hazard Ratio; AHR = Adjusted Hazard Ratio; 1 = reference categories, SICU = Surgical Intensive Care Unit