Table 5.

Multivariable logistic regression model for pneumonia (viruses compared to A/H1) N = 549

Outcome variable	Independent variable (IV; n = number of patients with IV and pneumonia/number of patients with IV in model)	Unadjusted OR (95% CI)	Unadjusted P-value	Adjusted OR (95% CI)	Adjusted P-value
Pneumonia (n = 230)	Virus (reference: A/H1) (n = 38/63)
	A/H3 (n = 62/173)	0.367 (0.203–0.665)	0.001	0.329 (0.176–0.613)	<0.001
	INF-B (n = 23/72)	0.309 (0.152–0.626)	0.001	0.269 (0.130–0.557)	<0.001
	hMPV (n = 34/80)	0.486 (0.248–0.952)	0.035	0.531 (0.264–1.067)	0.075
	PIV (n = 32/66)	0.619 (0.308–1.25)	0.179	0.592 (0.287–1.220)	0.155
	RSV (n = 41/95)	0.500 (0.261–0.954)	0.036	0.483 (0.246–0.951)	0.035
	Immunocompromised (n = 14/50)	0.407 (0.288–0.573)	<0.001	0.422 (0.218–0.817)	0.011
	Asthma (n = 7/41)	0.297 (0.191–0.461)	<0.001	0.249 (0.106–0.582)	0.001
	Female (n = 114/269)	0.849 (0.703–1.027)	0.091	1.167 (0.819–1.663)	0.392
	Age group (reference: 18–49 years, n = 52/127)
	50–64 years (n = 57 146)	0.936 (1.722–1.214)	0.619	0.849 (0.509–1.416)	0.531
	65+ years (n = 121/276)	1.141 (0.911–1.430)	0.250	1.164 (0.740–1.830)	0.511