Table 1.

Influenza morbidity ratios for study participants based on Flu-Report. All data were drawn from Flu-Report as entered by participants in this study.

Age, years		Participants, N	Participants affected by influenza, n (%)	Participants affected by ILIa, n (%)
<20		2134	108 (5.06)	4 (0.19)
	<1	107	1 (0.9)	0 (0.0)
	1-5	522	27 (5.2)	1 (0.2)
	6-12	808	46 (5.7)	1 (0.1)
	13-19	697	34 (4.9)	2 (0.3)
20-59		6958	220 (3.16)	9 (0.13)
	20-29	1705	78 (4.57)	5 (0.29)
	30-39	1694	61 (3.60)	1 (0.06)
	40-49	2103	60 (2.85)	3 (0.14)
	50-59	1456	21 (1.44)	0 (0.00)
≥60		1002	6 (0.60)	0 (0.00)
	60-69	621	2 (0.3)	0 (0.0)
	70-79	233	3 (1.3)	0 (0.0)
	≥80	148	1 (0.7)	0 (0.0)
Total		10,094	334 (3.31)	13 (0.13)

^aILI: influenza-like illness.