Comparison 16. Influenza and pneumococcal vaccines versus no vaccination: case‐control studies in community.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
16.1 Hospitalisations for influenza or pneumonia	4	6629	Odds Ratio (M‐H, Random, 95% CI)	0.97 [0.85, 1.09]
16.1.1 Outbreak ‐ vaccine matching	2	3617	Odds Ratio (M‐H, Random, 95% CI)	0.95 [0.69, 1.31]
16.1.2 No outbreak ‐ vaccine matching	2	3012	Odds Ratio (M‐H, Random, 95% CI)	0.93 [0.80, 1.08]