Increasing influenza vaccination among high-risk elderly: a randomized controlled trial of a mail cue in an HMO setting.
A randomized controlled trial demonstrated that a single mailed influenza vaccination cue increased the vaccination rate among elderly HMO members with high-risk chronic conditions (n = 2217) from 30 per cent to 39 per cent during the fall and winter of 1984/85.
D000368:Aged; D003256:Community Participation; D005069:Evaluation Studies as Topic; D005260:Female; D006279:Health Maintenance Organizations; D006801:Humans; D007252:Influenza Vaccines / Q000627:therapeutic use*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D012128:Respiratory Distress Syndrome / Q000517:prevention & control*; D012306:Risk
D007252:Influenza Vaccines