How effective are interventions to increase influenza vaccination rates in those 60 years and older in the community?
The other 33 RCTs were at high risk of bias, and the limited results of the RCTs at low and moderate risk of bias should be viewed in this context. Heterogeneity was marked and metaanalysis was limited. All the identified RCTs were of older people in the community, and conducted in high-income countries. There were no RCTs of interventions to increase influenza vaccination rates in institutions.
There is uncertainty about the effectiveness of interventions to increase influenza vaccination rates in those 60 years or older. Although the evidence to support influenza vaccination is poor, it is promoted by many health authorities.