. Author manuscript; available in PMC: 2011 Nov 30.

Published in final edited form as: Infect Control Hosp Epidemiol. 2010 Jul;31(7):676–682. doi: 10.1086/653204

TABLE 3.

Outcomes and Severe Disease among Patients with Pandemic (H1N1) 2009 Influenza or Seasonal Influenza

Variable	No. (%) of patients		OR (95% CI)	P
Variable	Pandemic (H1N1) 2009 influenza (n = 49)	Seasonal influenza (n = 503)	OR (95% CI)	P
Death	3 (6)	12 (2)	2.67 (0.47–10.36)	.13
ICU admission	6 (12)	66 (13)	0.92 (0.31–2.30)	.86
Use of mechanical ventilation	4 (8)	35 (7)	1.19 (0.29–3.55)	.75
Rehospitalization within 30 days	7 (14)	56 (11)	1.33 (0.48–3.18)	.51
Length of stay,^a median (range)	2 (1–48)	4 (1–56)	…	.20

NOTE. CI, confidence interval; ICU, intensive care unit; OR, odds ratio.

Length of stay calculation based on hospitalized patients only.