Table 5.

Comparison of different parameters between patients with bacterial and non-bacterial febrile illness presenting with a C-reactive protein concentration less than 100 mg/L

	Variable	Duration of fever (hours)	CRP (mg/L)	CRP-velocity (mg/L/hour)	WBC (103/ml3)	Neutrophils (103/ml3)
Bacterial (n = 59)	Mean	27.2	30.58	2.6	13.1	11.0
	Interquartile range	4.0 to 24.5	18.6 to 80.6	1.1 to 6.0	8.4 to 16.6	6.79 to 14.87
Non-bacterial (n = 63)	Mean	67.7	12.16	0.35	8.3	5.7
	Interquartile range	17 to 88	8.3 to 36.8	0.16 to 1.04	5.9 to 9.9	3.5 to 7.3
P value		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

CRP = C-reactive protein; WBC = white blood cells.