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Clinical Trial
. 1999 Aug;89(8):1235-7.
doi: 10.2105/ajph.89.8.1235.

Public health in managed care: a randomized controlled trial of the effectiveness of postcard reminders

A E Clayton  1 , L A McNutt, H L Homestead, T W Hartman, S Senecal
Affiliations
Clinical Trial

Public health in managed care: a randomized controlled trial of the effectiveness of postcard reminders

A E Clayton et al. Am J Public Health. 1999 Aug.

Abstract

Objectives: This study evaluated the effectiveness of an annual public health intervention in a managed care setting.

Methods: Managed care organization members 65 years and older who received influenza immunization in 1996 were randomized to an intervention group (mailed a postcard reminder to receive an influenza vaccination in 1997) or a control group (no postcard). Vaccination rates for both groups were assessed monthly.

Results: Members receiving the intervention were no more likely to be immunized (78.6%) than members of the control group (77.2%, P = .222). Members were vaccinated at the same pace regardless of vaccination history and postcard intervention status.

Conclusions: Postcard reminders were not an effective intervention among seniors who had been vaccinated the previous year.

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