Evaluation of Vaccination Reminder/Recall Systems for Adolescent Patients

University of California, Los Angeles10,599 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

SINGLE

Enrollment

10,599

Conditions

Immunization Status Well Child Care Visit

Eligibility

Sex: ALLMin age: 11 YearsMax age: 18 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Fully Vaccinated (Tdap, Menactra and 3 Doses of HPV (if Female))

Time frame: 12 months

Well Child Care Status

Received recommended well child care visit