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. 2011 May 17;2011:0301.
Ref (type) Population Outcome, Interventions Results and statistical analysis Effect size Favours
Recurrence

Systematic review
5253 children aged 6 months to 7 years
6 RCTs in this analysis
Incidence of AOM 3 to 8 months
1249/3223 (39%) with influenza vaccination
832/2030 (41%) with placebo

RR 1.00
95% CI 0.79 to 1.26
P = 0.99
Not significant