TABLE 1.
Univariate analysis of demographic, clinical, and laboratory variables
| Non-survivors (n) | Survivors (n) | ||||
|---|---|---|---|---|---|
| Variables | Mean ± SD or (%) | Mean ± SD or (%) | Odds ratio | 95% confidence interval | P value |
| Sex ratio M:F | 5:1 (82% M) | 5:1 (84% M) | 0.8 | 0.41–1.59 | 0.5 |
| Mean age in years | 43 ± 15 (89) | 35 ± 16 (281) | 0.000 | ||
| Age over 40 years | 56% | 35% | 2.36 | 1.4–4.0 | 0.0002 |
| Days of symptoms to admission | 5.0 ± 2.7 (89) | 6.0 ± 4.0 (281) | 0.02 | ||
| Jaundice | 85% (89) | 78% (281) | 1.6 | 0.8–3.4 | 0.1 |
| Mean bilirubin mg/dL | 15 ± 13 (89) | 10 ± 9 (281) | 0.0007 | ||
| Bilirubin > 6 mg/dL | 69%(79) | 51% (281) | 2.18 | 1.24–3.8 | 0.003 |
| Creatinine > 3.0 mg/dL | 65% (85) | 31% (281) | 4.16 | 2.41–7.20 | 0.0000 |
| Mean serum ceatinine | 4.6 ± 2.4 (89) | 2.9 ± 2.2 (281) | 0.0000 | ||
| Platelet < 70,000 | 61% (65) | 36% (258) | 2.6 | 1.5–5.0 | 0.0000 |
| Mean platelet count | 68027 ± 37000 (65) | 121000 ± 110000 (265) | 0.0005 | ||
| Pulmonary involvement | 74% (89) | 26% (281) | 9.1 | 5–17 | 0.0000 |
| Oliguria | 87% (89) | 48% (281) | 7.1 | 3.6–15 | 0.0000 |
| Serogroup icterohaemorrhagiae | 92% (41) | 80% (114) | 0.5 |