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The IVY project focuses on improving combination 10 vaccine rates for Tennessee children through an educational and quality improvement intervention rolled out through a stepped-wedge cluster randomized trial.
The proposed work seeks to improve Combination 10 vaccination rates for Tennessee children at 2 years of age through the development and implementation of a new program, Improving Vaccination for Young Children (IVY). Through a collaboration with the Cumberland Pediatrics Foundation (CPF), a non-profit company focused on improving health care services for Tennessee's children, investigators plan to adapt and disseminate existing CoVER educational materials for community pediatric providers and clinical staff, and develop and implement targeted quality improvement (QI) initiatives.
A.3. Specific Objectives:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Step Wedge Randomized Group 1 | Experimental | Includes two pediatric practices randomized to the first step of the step-wedge randomized trial |
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| Step Wedge Randomized Group 2 | Experimental | Includes two pediatric practices randomized to the second step of the step-wedge randomized trial |
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| Step Wedge Randomized Group 3 | Experimental | Includes two pediatric practices randomized to the third step of the step-wedge randomized trial |
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| Step Wedge Randomized Group 4 | Experimental | Includes two pediatric practices randomized to the fourth step of the step-wedge randomized trial |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| IVY | Other | a combination of practice education and quality improvement interventions |
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| Measure | Description | Time Frame |
|---|---|---|
| Combination 10 vaccination rates in 2 year old children | The primary outcome is individual patient-level receipt of all vaccinations [Combo 10 (binary, yes/no)] for children turning 2 years of age in prior month. | Assessing change in combination 10 vaccination rates in 2 year old children up to 12 months |
| Measure | Description | Time Frame |
|---|---|---|
| Combination 3 vaccination rates in 2 year old children | The primary outcome is individual patient-level receipt of all vaccinations [Combo 3 (binary, yes/no)] for children turning 2 years of age | Assessing change in combination 3 vaccination rates in 2 year old children up to 12 months |
| Additional sub analyses of combination 10 vaccination rates (excluding flu vaccine) in 2 year old children |
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Inclusion Criteria:
Exclusion Criteria:
-none
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| Name | Affiliation | Role |
|---|---|---|
| Sarah E Williams, MD, MPH | Vanderbilt University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sarah E Williams | Nashville | Tennessee | 37232 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 34118498 | Derived | Williams SE, Adams LE, Sommer EC. Improving Vaccination for Young Children (IVY): A Stepped-Wedge Cluster Randomized Trial. Acad Pediatr. 2021 Sep-Oct;21(7):1151-1160. doi: 10.1016/j.acap.2021.06.001. Epub 2021 Jun 10. |
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| ID | Term |
|---|---|
| D000072758 | Vaccination Refusal |
| ID | Term |
|---|---|
| D016312 | Treatment Refusal |
| D000074822 | Treatment Adherence and Compliance |
| D015438 | Health Behavior |
| D001519 | Behavior |
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Intervention effectiveness on improving vaccination rates will be evaluated using a SW-CRT. 36 Eight practices (clusters) will eventually be randomized to receive the IVY intervention over a 13-month study period. Patients are clustered within practices, and outcomes will be assessed on cross-sectional samples of individuals at each practice at 13 discrete, monthly time points. There will be a baseline block of two months where all practices will be in the control group (Figure 3). Following this, two practices will be randomly assigned to receive the intervention (Group 1). Two months after initiation of IVY in Group 1, two practices will be randomly assigned to receive the intervention in Group 2. This will be continued for 4 total Groups. There will be a five-month block after implementing IVY in all practices where data will continue to be collected after all have been assigned to receive the intervention.
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We will adjust our data and analyze combo 10 vaccination rates minus influenza vaccine. |
| Assessing change in combination 10 vaccination (excluding flu vaccine) rates in 2 year old children up to 12 months |
| Additional sub analyses of combination 10 vaccination rates in 2 year old children adjusting for proportion of practice who complete educational training | We will determine proportion of the practice who completed the educational training and conduct a dose analysis. | Assessing how "dose" of educational training affects change in combination 10 vaccination rates in 2 year old children up to 12 months |
| Additional sub analyses of combination 10 vaccination rates in 2 year old children adjusting for whether practice represents a community or academic population | We will adjust for the bivariate variable of community versus academic population within our analysis model. Community practices are those that are recruited by our partner Cumberland Pediatric Foundation and academic practices are those directly affiliated with Vanderbilt. | Assessing change in combination 10 vaccination rates in 2 year old children up to 12 months, adjusting for educational "dose" |