Evaluation of an Intervention PROMOting VAccination in Maternity in Quebec

Study Overview
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Brief Summary
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Vaccination greatly reduced mortality and morbidity from many preventable diseases. However, to avoid the resurgence of these diseases and the human drama associated, high vaccine coverage should be maintained in the population. Yet in Quebec, vaccine coverage (VC) in young children remains suboptimal, especially caused by a proportion of parents who are ambivalent about the safety and effectiveness of vaccines. In this context, the Provincial Immunization Committee developed in 2010 a Quebec's immunization promotion plan. Therefore, our research team tested and validated across the Eastern Townships, a vaccination promotion concept by means of an educational intervention within maternities, based on motivational interviewing techniques. This intervention has not only significantly increased the intention of vaccination (+15%) within parents who had received the intervention but also increased their child vaccination coverage (+7.5% at 7 months). This is the purpose of the PROMOVAQ study (PROmotion of VAccination in Quebec) This research project evaluated the impact of an educational strategy based on motivational interviewing techniques within maternity ward on infants' VC. This strategy has been tested through a provincial study (Montreal, Quebec, Sherbrooke) including more than 2500 families. At term, this research program will offer the Quebec's Health Ministry an optimal strategy for immunization awareness so that Quebec's children may grow healthy and thrive.

Official Title
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Evaluation of a New Educational Strategy Promoting Vaccination in Maternity in Quebec Based on Motivational Interviewing Techniques: PROMOVAQ Study

Conditions
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Motivational Interviewing

Intervention / Treatment
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* Behavioral: Motivational interviewing


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Parents of all infants born in each participating maternity hospitals In Sherbrooke, inclusion limited to parents residing in the region of the Eastern Townships In Québec, inclusion limited to parents residing in the National Capital region. Exclusion Criteria: Minor parents Parents who do not speak English or French Any health condition of the child or the mother needing acute care. That is to say, if the child must be hospitalized in neonatology, or if the mother has an incompatible condition with an interview.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

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: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Motivational interviewing on vaccination<br>An educational strategy based on motivational interviewing of approximately 15 minutes to promote vaccination, in maternity ward. | Behavioral: Motivational interviewing<br> <br> |
| No Intervention: Brochure about vaccines for infants<br>Parents in the control group only received a brochure about vaccines for infants. This brochure is given to all fathers and mothers giving birth to the CHUS, participating or not at our study. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Vaccination status of the child at 7 months of age | Data was collected at 10 months of age for all children from regional immunization registries or self-reported by parents over the phone. Vaccination coverage is then defined by the number of infants who received all recommended childhood vaccines at 7 months of age by the total number of children. | 10 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Vaccination status of the child at 3 and 5 months of age | Data was collected at 10 months of age for all children from regional immunization registries or self-reported by parents over the phone. Early vaccination coverage is then defined by the number of infants who received all recommended childhood vaccines at 3 and 5 months of age by the total number of children. | 10 months | 
| Vaccination status of the child at 13, 19 and 24 months of age | Data will be collected at 24 months of age for all children from regional immunization registries or self-reported by parents over the phone. Long-term vaccination coverage is then defined by the number of infants who received all recommended childhood vaccines at 13, 19 and 24 months of age by the total number of children. | 24 months | 
| Intention's parents to vaccination assessed by a questionnaire based on the Health Belief Model |  | Within the 20 minutes right before the intervention and within the first 20 minutes right after the intervention | 
| Hesitancy 's parents to vaccination by a questionnaire based on the Opel's tool to measure vaccine hesitancy |  | Within the 20 minutes right before the intervention and within the first 20 minutes right after the intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Vaccination, Infant, Parents, Intention