Table 8.

Multivariable logistic regression model for pneumonia (viruses compared to A/H3) 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/H3) (n = 62/173)
	A/H1 (n = 38/63)	2.721 (1.504–4.923)	0.001	3.042 (1.632–5.673)	<0.001
	INF-B (n = 23/72)	0.840 (0.468–1.508)	0.560	0.819 (0.452–1.485)	0.512
	hMPV (n = 34/80)	1.323 (0.770–2.274)	0.311	1.616 (0.920–2.838)	0.095
	PIV (n = 32/66)	1.685 (0.949–2.991)	0.075	1.801 (0.999–3.249)	0.051
	RSV (n = 41/95)	1.359 (0.815–2.266)	0.239	1.471 (0.871–2.485)	0.149
	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