Table 3.

Univariate metaregression for the incidence of viral infections and viral infections mixed with other pathogens in adult patients with CAP

	Metaregression coefficient	95% CI	p
Incidence of respiratory viral infections in patients with CAP
LRI specimens	0.091	0.001 to 0.18	0.048
Region	0.002	-0.04 to 0.04	0.904
Number of viral species detected	0.008	-0.01 to 0.02	0.273
Number of viral detection methods	-0.019	-0.10 to 0.06	0.620
Time span	-0.017	-0.05 to 0.02	0.350
Incidence of respiratory viral coinfections with other pathogens in patients with CAP
LRI specimens	0.049	-0.03 to 0.13	0.198
Region	-0.0004	-0.03 to 0.03	0.975
Viral species detected, n	0.006	-0.01 to 0.02	0.314
Viral detection methods, n	-0.004	-0.05 to 0.04	0.843
Time span, year	0.0008	-0.10 to 0.10	0.986