Table 7.

Multivariable logistic regression model for ICU admission (viruses compared to A/H3) N = 549

Outcome variable	Independent variable (IV; n = number of patients with IV in ICU/number of patients with IV in model)	Unadjusted OR (95% CI)	Unadjusted P-value	Adjusted OR (95% CI)	Adjusted P-value
ICU admission (n = 66)	Virus (reference: A/H3) (n = 18/173)
	A/H1 (n = 18/63)	0.344 (1.655–7.167)	0.001	2.561 (1.188–5.520)	0.016
	INF-B (n = 8/72)	1.076 (0.445–2.601)	0.870	0.986 (0.401–2.425)	0.975
	hMPV (n = 4/80)	0.453 (0.148–1.386)	0.165	0.405 (0.131–1.259)	0.118
	PIV (n = 7/66)	1.021 (0.406–2.571)	0.964	0.931 (0.360–2.406)	0.883
	RSV (n = 11/95)	1.128 (0.509–2.500)	0.767	0.997 (0.439–2.261)	0.994
	COPD (n = 18/92)	1.311 (0.975–7.763)	0.073	2.762 (1.438–5.306)	0.002
	Female (n = 26/269)	0.635 (0.496–0.812)	<0.001	0.635 (0.367–1.098)	0.104
	Age group (reference: 18–49 years, n = 22/127)
	50–64 years (n = 23/146)	0.968 (0.714–1.313)	0.836	0.794 (0.404–1.560)	0.503
	65+ years (n = 21/276)	0.495 (0.370–0.663)	<0.001	0.356 (0.177–0.715)	0.004