Comparison 3. Amantadine and rimantadine compared to placebo in the prophylaxis of influenza A in the elderly.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 RMT (proved and clinical infection)	3	191	Risk Ratio (M‐H, Random, 95% CI)	0.74 [0.13, 4.07]
2 RMT Monto (100 + 200) and Patriarca	2	103	Risk Ratio (M‐H, Random, 95% CI)	0.45 [0.14, 1.41]
3 RMT 200	2	75	Risk Ratio (M‐H, Random, 95% CI)	0.44 [0.12, 1.63]
4 RMT 100	2	130	Risk Ratio (M‐H, Random, 95% CI)	1.42 [0.10, 21.10]