Univariate and multivariate analysis to evaluate determinants (risk factors) of prolonged length of hospital stay
| Variables* | Univariate analysis | Multivariate analysis | ||||
| p Value | OR | 95% CI | p Value | OR | 95% CI | |
| DHF | 0.001 | 2.3 | 1.4 to 3.8 | 0.009 | 2.3 | 1.2 to 4.3 |
| Hypertension | 0.048 | 2.1 | 1.1 to 4.2 | 0.688 | 1.2 | 0.5 to 2.1 |
| Elevated ALP | <0.001 | 2.5 | 1.7 to 3.7 | <0.001 | 2.3 | 1.5 to 3.5 |
| Prolonged PT | <0.001 | 2.6 | 1.9 to 3.6 | 0.009 | 1.7 | 1.1 to 2.5 |
| Prolonged aPTT | <0.001 | 2.7 | 1.8 to 3.9 | 0.005 | 1.9 | 1.2 to 2.9 |
| Thrombocytopenia | 0.135 | 1.3 | 0.9 to 1.7 | 0.197 | 1.3 | 0.9 to 1.8 |
| AKI | 0.242 | 1.3 | 0.8 to 2.0 | 0.174 | 0.7 | 0.3 to 1.2 |
| MODs | 0.002 | 1.9 | 1.3 to 2.9 | 0.013 | 2.1 | 1.2 to 3.7 |
Hosmer-Lameshow test statistics: χ2: 7.474, degree of freedom: 6, p value=0.279.
*Variables lack multicollinearity and had variance inflation value <2.
AKI, acute kidney injury; ALP, alkaline phosphatase; aPTT, activated partial thromboplastin time; DHF, dengue haemorrhagic fever; MODs, multiple-organ dysfunction; PT, prothrombin time.