Table 4.

Markers of severity in patients with underlying diseases compared with previously healthy children adjusted by age

	Raw data			Adjusted by age data
	OR	95% CI	P	OR	95% CI	P
PICU admission	1·77	(1·14–2·76),	0·0145	2·58	(1·56–4·25)	0·0002
Fever	1·46	(1·05–2·03)	0·0292	0·9	(0·62–1·32)	0·6023
Oxygen requirement	1·67	(1·12–2·48)	0·0145	1·66	(1·06–2·58)	0·0262
Mechanical ventilation.	1·81	(1·09–3)	0·0285	3·64	(2·05–6·44)	0·0001
Venous line	1·87	(1·35–2·59)	0·0002	1·86	(1·29–2·68)	0·0009
Antibiotic treatment	2·26	(1·63–3·15)	<0·0001	1·73	(1·2–2·51)	0·0037
Nasogastric tube feeding	2·15	(1·35–3·43)	0·0017	3·26	(1·93–5·51)	0·0001
Days of hospitalization	2·68	(1·34–4·03)	0·0001	3·69	(2·55–4·83)	0·0001
Stay at PICU	4	(1·28–7·52)	0·0069	4·87	(1·8–7·94)	0·0026

OR, odds ratio; CI, confidence interval; PICU, pediatric intensive care unit.