Seasonal Influenza Vaccination
Conditions
Keywords
influenza, vaccine, reminder / recall, immunization registry, immunization information systems
Brief summary
The objective of this study was to assess the feasibility and effectiveness of using a statewide immunization information system (IIS) to send seasonal influenza vaccine reminders from Local Health Departments (LHDs), targeting children with high-risk conditions.
Interventions
BEHAVIORALMailed influenza vaccination reminder notice
Influenza vaccination reminder sent by postal mail
Sponsors
Centers for Disease Control and Prevention
University of Michigan
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
24 Months to 60 Months
Healthy volunteers
No
Inclusion criteria
* children, 24-60 months * current or previous enrollment in Medicaid (Michigan) * presence of at least 1 chronic condition, as indicated by the Michigan Care Improvement Registry (MCIR) * resident of Kalamazoo, Ottawa, or Kent counties (Michigan)
Exclusion criteria
* receipt of influenza prior to notification date * ineligible for reminder/recall notification in the Michigan Care Improvement Registry (MCIR)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| seasonal influenza vaccination | up to 4 months following reminder notification | Receipt of 1 or more dose of seasonal influenza vaccine, either trivalent inactivated influenza vaccine (TIV) or live attenuated influenza vaccine (LAIV) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| invalid mailing address | up to 4 months following reminder notification | Postal mailing address determined to be invalid for mail delivery, either by physical return of mailed reminder notification, or through the United States Postal Service's National Change of Address (NCOA) process |
Countries
United States
Outcome results
None listed