Evaluation of Vaccination Reminder/Recall Systems for Adolescent Patients

Study Overview
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Brief Summary
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The investigators will design and implement a randomized clinical trial to test, on a community-wide level, the effectiveness of managed care based tracking/reminder/recall on improving vaccination coverage among adolescents. The investigators propose a randomized controlled trial to evaluate the effectiveness of reminder/recall for adolescents: 10,599 adolescents within the managed care organization (MCO) will be randomized into one of three arms: 1) mailed reminders, 2) autodialer telephone messages or 3) standard of care of their practice (no messages from the intervention). Hypothesis 1: Reminder/recall will increase the receipt of immunizations and preventive services Hypothesis 2: Telephone (autodialer) reminders will be more effective than mailed reminders Hypothesis 3: The impact of reminders will be greatest for the most high-risk subgroups which have low baseline immunization rates. Hypothesis 4: Mailed reminders will be more costly (and less effective) than telephone reminders.

Official Title
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Randomized Controlled Trial of an Automated, Managed Care-based Reminder/Recall System on Improving Rates of Immunization and Preventive Care Visits for Publically Insured Adolescents

Conditions
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Immunization Status, Well Child Care Visit

Intervention / Treatment
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* Other: Autodialer
* Other: Letters


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Member of the Monroe Plan for Medical Care (managed care organization) Patient of a participating practice Ages 10.75 to <18 years of age Exclusion Criteria: Member of the Monroe Plan for Medical care for less than 6 months ICD-9 diagnosis of 999.4 for anaphylactic reaction to a vaccine or its components. Encephalopathy within 7 days of a previous dose of a pertussis containing vaccine not attributable to another identifiable cause Guillain-Barre- ICD-9 code is 357.0

Ages Eligible for Study
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Minimum Age: 11 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Autodialer<br>Autodialer reminder/recall | Other: Autodialer<br>* Autodialer telephone calls<br>|
| Experimental: Letters<br>Mailed reminder letters | Other: Letters<br>* Mailed reminder letters<br>|
| No Intervention: Controls<br>Controls | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Fully Vaccinated (Tdap, Menactra and 3 Doses of HPV (if Female)) |  | 12 months | 
| Well Child Care Status | Received recommended well child care visit | 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Tdap, Immunization status for:, Menactra, HPV (if female), Well child care visit