Table 2.
Multivariate logistic regression model used to predict dengue shock syndrome and nonshock cases a
| Predictors | OR (95% CI) | Adjusted OR (95% CI) | P -value |
|---|---|---|---|
| Age |
1.01 (0.95 to 1.08) |
1.05 (0.98 to 1.13) |
0.1756 |
| Admission dayb,c |
0.82 (0.69 to 0.99) |
0.66 (0.52 to 0.83) |
0.0041 |
| Day of shock |
0.91 (0.77 to 1.07) |
0.91 (0.76 to 1.08) |
0.3476 |
| Petechia |
1.13 (0.75 to 1.71) |
0.78 (0.46 to 1.30) |
0.3381 |
| Purpura/ecchymosisc |
2.17 (1.43 to 3.32) |
1.78 (1.11 to 2.86) |
0.017 |
| GI bleeding |
1.75 (0.99 to 3.09) |
1.37 (0.73 to 2.58) |
0.1290 |
| Ascites/pleural effusionc |
0.23 (0.14 to 0.42) |
0.24 (0.13 to 0.43) |
0.0001 |
| PLT (×103/μl)c,d |
0.99 (0.99 to 0.99) |
0.99 (0.99 to 0.99) |
0.0148 |
| Pulse pressure (mmHg)c,d | 0.96 (0.93 to 0.98) | 0.96 (0.93 to 0.99) | 0.0163 |
aCI, confidence interval; GI, gastrointestinal; OR, odds ratio; PLT, platelet. Dengue shock syndrome refers to dengue hemorrhagic fever, and nonshock cases refers to dengue fever.
bOR represents the decremental odds of recurrent shock for every unit decrease of one day in admission days. cVariables were selected for developing the clinical rules. dOR represents the incremental odds of recurrent shock for every unit increase of 1,000 platelets per microliter or every 1 mmHg increase in pulse pressure.