Table 5.
Univariate analysis of risk factors for detection of 90-day mortality
| Characteristic | NT | 90-day mortality n (%) | Odds ratio (95% CI) | P value | |
|---|---|---|---|---|---|
| 637 | |||||
| Gender | Male | 403 | 28 (6.9) | 1.17 (0.605-2.276) | 0.64 |
| Female | 234 | 14 (6.0) | Reference | 1.000 | |
| Age groups (years) | ≤30 | 126 | 5 (4.0) | Reference | |
| 31-40 | 136 | 4 (2.9) | 0.73 (0.192-2.794) | 0.65 | |
| 41-50 | 144 | 6 (4.2) | 1.05 (0.313-3.543) | 0.93 | |
| 51-60 | 231 | 27 (11.7) | 3.2 (1.202-8.537) | 0.02 | |
| Malignancy | 60 | 11 (18.3) | 3.95 (1.873-8.349) | <0.0001 | |
| Prior neurologic damage | 125 | 22 (17.6) | 5.25 (2.766-9.982) | <0.0001 | |
| Post chest radiation | 31 | 17 (9.9) | 3.56 (1.716-7.400) | 0.001 | |
| Immune deficiency | 156 | 19 (12.2%) | 2.76 (1.461-5.221) | 0.002 | |
| Corticosteroid therapy | 76 | 10 (13.2%) | 2.50 (1.178-5.328) | 0.017 | |
| Nursing institution | 52 | 10 (19.2%) | 4.11 (1.893-8.942) | <0.0001 | |
| BUN >10.7 mmol/L | 65 | 9 (13.8%) | 2.62 (1.195-5.765) | 0.016 | |
| Hemoglobin <110 g/L | 113 | 12 (10.6%) | 2.02 (0.999-4.100) | 0.050 | |
| WBC <4 or >12 × 109/L | 347 | 30 (8.6%) | 2.19 (1.101-4.365) | 0.025 | |
| RDW >14.5% | 218 | 27 (12.4%) | 3.81 (1.979-7.324) | <0.0001 | |
BUN, blood urea nitrogen; CI, confidence interval; NT, all the patients that were included in the cohort; RDW, red cell width distribution; WBC, white blood cells.