Table 4. Multivariate stepwise logistic regression analysis for mortality (N = 22, 767).
| Variables | Univariate logistic regression analysis | Multivariate stepwise logistic regression analysis | ||
|---|---|---|---|---|
| OR (95% CI) | p | OR (95% CI) | p | |
| Age | 1.12 (1.10–1.13) | 0.0001 | 1.11 (1.10–1.12) | 0.0001 |
| Gender | 0.441 | 0.19 | ||
| Female | reference | reference | ||
| Male | 1.12 (0.84–1.51) | 1.23 (0.91–1.66) | ||
| The levels of hospitals/clinics reporting dengue cases | ||||
| Medical center | reference | reference | ||
| Regional hospital | 0.61 (0.45–0.83) | 0.002 | 0.68 (0.49–0.94) | 0.018 |
| District hospital | 0.39 (0.10–1.57) | 0.182 | 1.03 (0.24–4.46) | 0.965 |
| Clinics | 0.12 (0.05–0.27) | 0.0001 | 0.27 (0.12–0.62) | 0.002 |
| Other | 0.11 (0.02–0.76) | 0.025 | 0.33 (0.05–2.4) | 0.274 |
| Respiratory distress | 30.12 (15.39–58.93) | 0.0001 | 9.66 (4.57–20.44) | 0.0001 |
| Altered consciousness | 34.40 (11.30–104.68) | 0.0001 | 7.06 (2.19–22.73) | 0.001 |
| Thrombocytopenia | 4.04 (2.05–7.98) | 0.0001 | 2.55 (1.24–5.28) | 0.011 |
| Myalgia | 0.27 (0.16–0.45) | 0.0001 | 0.39 (0.23–0.66) | 0.0001 |
| Bone and joint pain | 0.32 (0.14–0.73) | 0.007 | 0.52 (0.23–1.19) | 0.119 |
| Abnormal heart rhythm | 15.86 (1.97–127.44) | 0.009 | ||
| Shock | 15.03 (4.78–53.71) | 0.0001 | ||
| Chest tightness/ pain | 7.97 (1.89–33.49) | 0.005 | ||
| Bleeding | 3.72 (1.36–10.16) | 0.010 | ||
| Fatigue | 2.18 (1.23–3.85) | 0.007 | ||
| Fever | 0.50 (0.32–0.73) | 0.002 | ||
| Skin rash | 0.42 (0.20–0.89) | 0.024 | ||
| Headache | 0.39 (0.24–0.63) | 0.0001 | ||
Variables entered on step 1 of the multivariate stepwise logistic regression analysis: All variables with p ≤ 0.05 in the univariate logistic regression analysis.