Table 1. Background characteristic of patients.

	Confirmed H1N1v ILI cases	ILI controls (non-H1N1v cases)
IlI (fever+1 other symptom)	186 (96%)	83 (89%)
Of those with ILI
Adults	115 (62%)	58 (70%)
Children	71 (38%)	25 (30%)
Risk group	36 (19%)	21 (25%)
Hospital admission	16 (9%)	7 (8%)
Antivirals	132 (71%)	44 (53%) p = 0.0065*
Antivirals within 2 days after onset	65 (35%)	26 (31%)

*not significant when corrected for multiple comparisons.