Population Versus Practice-based Interventions to Increase Immunizations

University of Colorado Denver (CU Denver)

Status: Completed

Conditions: Immunization; Comparative Effectiveness; Health Services Research

Treatments: Behavioral: Recall conducted by private practices; Behavioral: Recall conducted centrally by local health department

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT01296906

10-0823

1RC1LM010513-01 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

One of the nation's major health priorities, as outlined in Healthy People 2010, is to increase the proportion of children aged 19 to 35 months who have received all universally recommended vaccines. This study will compare two interventions for increasing immunization rates in this age group, one using well-studied primary care practice-based methods and the other using innovative technologies to increase immunization rates at the population-level. Results of this study will provide data that will be relevant nationally in guiding future investment of resources to increase up-to-date rates in young children prior to school entry.

Hypothesis: Population-based approaches will be more effective than practice-based interventions at increasing immunizations among 19-35 month olds.

Enrollment: 31,567 patients

Sex: All

Ages: 19+ months old

Volunteers: No Healthy Volunteers

Inclusion criteria

• child between the age of 19-35 months
• has an address in a specified study county in the state immunization registry
• child is in need of at least one recommended immunization

Exclusion criteria

• child has opted out of the state immunization registry
• child is up-to-date on all recommended immunizations

Trial design

Primary purpose: Health Services Research

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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31,567 participants in 2 patient groups

Population-based Reminder/Recall

Experimental group

Description:

Recall is performed centrally by public health departments for all children in need of immunizations in a geographic area.

Treatment:

Behavioral: Recall conducted centrally by local health department

Practice-based Reminder/Recall

Experimental group

Description:

Reminder/Recall is performed by individual private practices for their patients who appear in need of immunizations.

Treatment:

Behavioral: Recall conducted by private practices