Table 6.

Cox regression model for probability of discharge from hospital over time (viruses compared to A/H1) N = 535

Outcome variable	Independent variable	Unadjusted HR (95% CI)	Unadjusted P-value	Adjusted HR (95% CI)	Adjusted P-value
Discharge from hospital (n = 535)	Virus (reference: A/H1) (n = 61)
	A/H3 (n = 168)	1.591 (1.170–2.162)	0.003	1.555 (1.139–2.123)	0.005
	INF-B (n = 69)	1.681 (1.174–2.407)	0.005	1.620 (1.129–2.325)	0.009
	hMPV (n = 79)	1.539 (1.086–2.181)	0.015	1.497 (1.055–2.124)	0.024
	PIV (n = 66)	1.419 (0.982–2.051)	0.062	1.533 (1.069–2.198)	0.020
	RSV (n = 92)	1.196 (0.851–1.680)	0.301	1.263 (0.898–1.775)	0.180
	COPD (n = 89)	0.919 (0.805–1.049)	0.210	0.765 (0.605–0.969)	0.027
	Female (n = 264)	1.189 (1.079–1.310)	<0.001	0.942 (0.792–1.120)	0.496
	Age group (reference: 18–49 years, n = 125)
	50–64 years (n = 142)	0.838 (0.735–0.956)	0.009	0.815 (0.637–1.043)	0.104
	65+ years (n = 268)	0.980 (0.873–1.099)	0.725	0.836 (0.668–1.045)	0.116