Table 4.

Significantly associated laboratory variables at 24 h prior to ICU requirement compared to first presentation of dengue-infected ICU (cases) patients

Variables	Den-infected ICU at presentation (n = 23)^	(IQR)	Den-infected ICU at 24 H prior ICU (n = 23)^	(IQR)	COR	P-value	95% CI
Systolic blood pressure	110	(91.5–118.5)	90	(80–101.5)	0.96	0.03	0.92–0.996
Pulse rate	95.5	(88.5–102)	101	(90.5–117.5)	1.07	0.044	1.002–1.14
White cell count	3.3	(2.4–4.2)	4.9	(3–7.4)	1.59	0.033	1.04–2.44
Proportion lymphocytes	16.5	(9.8–19.9)	23.5	(18.1–28.6)	1.19	0.020	1.03–1.38
Proportion monocytes	7.9	(5.1–9.9)	12.1	(9.1–17.9)	1.35	0.033	1.02–1.78
Serum hematocrit	44.9	(42.8–47.2)	40.2	(33.6–43.6)	0.81	0.037	0.66–0.99

COR- Conditional Odds Ratio; IQR- Interquartile range.

^- Four cases were excluded as they were admitted into ICU less than 24 hours after first presentation at hospital. Data in bold are risk factors involved in the most optimal predictive model of ICU requirement at 24h prior to ICU requirement.