Mary Patricia Nowalk1, Richard K Zimmerman2, Chyongchiou Jeng Lin2, Evelyn Cohen Reis3, Hsin-Hui Huang2, Krissy K Moehling2, Kristin M Hannibal4, Annamore Matambanadzo2, Emeil M Shenouda5, Norma J Allred6. 1. Department of Family Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa. Electronic address: tnowalk@pitt.edu. 2. Department of Family Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa. 3. Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pa; Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pa. 4. Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pa. 5. Latterman Family Health Center, McKeesport, Pa. 6. Immunization Services Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Ga.
Abstract
OBJECTIVE:Influenza vaccination rates among some groups of children remain below the Healthy People 2020 goal of 70%. Multistrategy interventions to increase childhood influenza vaccination have not been evaluated recently. METHODS:Twenty pediatric and family medicine practices were randomly assigned to receive the intervention in either year 1 or year 2. This study focuses on influenza vaccine uptake in the 10 year 1 intervention sites during intervention and the following maintenance year. The intervention included the 4 Pillars Immunization Toolkit-a practice improvement toolkit, early delivery of donated vaccine for disadvantaged children, staff education, and feedback on progress. During the maintenance year, practices were not assisted or contacted, except to complete follow-up surveys. Student's t tests assessed vaccine uptake of children aged 6 months to 18 years, and multilevel regression modeling in repeated measures determined variables related to the likelihood of vaccination. RESULTS:Influenza vaccine uptake increased 12.4 percentage points (PP; P < .01) during active intervention and uptake was sustained (+0.4 PP; P > .05) during maintenance, for an average change of 12.7 PP over all sites, increasing from 42.2% at baseline to 54.9% (P < .001) during maintenance. In regression modeling that controlled for age, race, and insurance, likelihood of vaccination was greater during intervention than baseline (odds ratio 1.47; 95% confidence interval 1.44-1.50; P < .001) and greater during maintenance than baseline (odds ratio 1.50; 95% confidence interval 1.47-1.54; P < .001). CONCLUSIONS: In primary care practices, a multistrategy intervention that included the 4 Pillars Immunization Toolkit, early delivery of vaccine, and feedback was associated with significant improvements in childhood influenza vaccination rates that were maintained 1 year after active intervention.
RCT Entities:
OBJECTIVE: Influenza vaccination rates among some groups of children remain below the Healthy People 2020 goal of 70%. Multistrategy interventions to increase childhood influenza vaccination have not been evaluated recently. METHODS: Twenty pediatric and family medicine practices were randomly assigned to receive the intervention in either year 1 or year 2. This study focuses on influenza vaccine uptake in the 10 year 1 intervention sites during intervention and the following maintenance year. The intervention included the 4 Pillars Immunization Toolkit-a practice improvement toolkit, early delivery of donated vaccine for disadvantaged children, staff education, and feedback on progress. During the maintenance year, practices were not assisted or contacted, except to complete follow-up surveys. Student's t tests assessed vaccine uptake of children aged 6 months to 18 years, and multilevel regression modeling in repeated measures determined variables related to the likelihood of vaccination. RESULTS: Influenza vaccine uptake increased 12.4 percentage points (PP; P < .01) during active intervention and uptake was sustained (+0.4 PP; P > .05) during maintenance, for an average change of 12.7 PP over all sites, increasing from 42.2% at baseline to 54.9% (P < .001) during maintenance. In regression modeling that controlled for age, race, and insurance, likelihood of vaccination was greater during intervention than baseline (odds ratio 1.47; 95% confidence interval 1.44-1.50; P < .001) and greater during maintenance than baseline (odds ratio 1.50; 95% confidence interval 1.47-1.54; P < .001). CONCLUSIONS: In primary care practices, a multistrategy intervention that included the 4 Pillars Immunization Toolkit, early delivery of vaccine, and feedback was associated with significant improvements in childhood influenza vaccination rates that were maintained 1 year after active intervention.
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