Age-Specific Strategies for Immunization Reminders and Recalls

Not Applicable

Completed

• Conditions: Childhood Vaccination
• Interventions: Behavioral: Childhood vaccination reminder / recall notification

• Registration Number: NCT01770496
• Lead Sponsor: University of Michigan

Brief Summary

The objective of this study was to assess the relative effectiveness of reminder/recall strategies among children who live in an urban area targeting alternative age-specific milestones.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2007-10
• Primary Completion: 2009-09
• Study Completion: 2010-09
• Status Verified: 2013-01
• Study First Submitted: 2013-01-15
• Study First Submitted QC: 2013-01-16
• Last Update Submitted: 2013-01-16
• Study First Posted: 2013-01-17
• Last Update Posted: 2013-01-17

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 10175

Inclusion Criteria

• 7 and 19 month recall groups: children not up to date for at least one vaccination at the time of notification
• 12 month reminder group: 12 months of age at time of notification
• Hib vaccination series was not assessed due to a vaccine shortage

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Exclusion Criteria

• Children were ineligible for notifications if they were designated in the Michigan Care Improvement Registry (MCIR)as having died, documented previously as having moved out of the jurisdiction ("Moved or Gone Elsewhere" (MOGE)), opted out of MCIR by their parent, or if they had been previously mailed for MCIR reminder/recall activity in the prior 60 days.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
mailed reminder / recall notice	Childhood vaccination reminder / recall notification	Childhood vaccination reminder / recall notification sent by postal mail. Stratified by age cohort of subjects: 7 month recall; 12 month reminder; 19 month recall

Primary Outcome Measures

Name	Time	Method
new immunization doses	within 60 days of reminder notification	Receipt of 1 or more childhood vaccinations with administration date following reminder notification date

Secondary Outcome Measures

Name	Time	Method
waived doses	within 60 days of reminder notification	One or more immunization waiver (non-administration) recorded with the date following the date of reminder notification
historical immunization doses	within 60 days of reminder notification	One or more vaccination recorded with the date of administration prior to the reminder notification date
Cost of vaccination reminder	During the time of reminder notification preparation and mailing and approximately 1 month following mailing	Estimated personnel costs to generate reminder notifications, print, fold / stuff envelopes and follow up on undeliverable notifications

Trial Locations

Locations (1)

University of Michigan, Child Health Evaluation and Research (CHEAR) Unit; 🇺🇸 Ann Arbor, Michigan, United States