TABLE 4.

Number of Students Reporting a Single Episode of ILI by Illness Duration and Number of Days Absent

	Number of days absent from work/school
	None		1–2		3–4		5–6		7 or more		Total
Illness duration	n	%	n	%	n	%	n	%	n	%	n	%
1 day	7		2								9	4.8
2 days	14		9		1						24	12.9
3 days	20		12		4						36	19.4
4 days	10		20		4						34	18.3
5 days	8		15		12		4				39	21.0
6 days	1		5		8		4				18	9.7
7 days	6		8		3		5		4		26	14.0
Total	66	35.5	71	38.2	32	17.2	13	7.0	4	2.2	186

Note. ILI = influenza-like illness. A total of 262 students reported having ILI at least once, but only students who also answered the question about number of days absent from school were included in this analysis.