Childhood Influenza Immunisation in General Practice Invitation Trial
NCT ID: NCT02921633
Last Updated: 2019-08-29
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
21786 participants
INTERVENTIONAL
2016-10-31
2017-03-31
Brief Summary
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Detailed Description
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This trial will determine whether an invitation letter, informed by behavioural insights and sent through a central system (Child Health Information System, CHIS), can increase uptake of childhood flu vaccine in primary care.
The trial will take place within the existing national childhood immunisation programme in the participating area in England. Randomisation will be clustered at the primary care practice level. Outcome data will be anonymised, routinely collected, individual-level influenza vaccine uptake data extracted from CHIS. For CHIS data validation purposes, practice-level vaccine uptake data reported through an alternative, routine system will be collected. Data will be collected on additional invitations/communications that primary care practices (in both the intervention and control arms) send to their patients. Cost data for the centralised letter will also be obtained.
The analysis will investigate the main effect of the intervention on uptake of the flu vaccination for all eligible children included in the trial. The model will include primary care practice and Clinical Commissioning Group effects to account for clustering. Secondary analysis will investigate the impact of such individual factors as age, immunisation history and socioeconomic status and practice-level factors (e.g. direct communication from practices) on uptake of the flu vaccination.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Intervention letter
Centrally-sent behavioural-insight informed invitation letter.
Intervention letter
Control
No centrally-sent invitation letter.
No interventions assigned to this group
Interventions
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Intervention letter
Eligibility Criteria
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Inclusion Criteria
* Registered with a primary care practice in the participating area
2 Years
3 Years
ALL
Yes
Sponsors
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National Health Service, United Kingdom
OTHER_GOV
Public Health England
OTHER_GOV
Responsible Party
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Principal Investigators
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Tim Chadborn, BSc MSc PhD
Role: PRINCIPAL_INVESTIGATOR
Public Health England
References
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Howell-Jones R, Gold N, Bowen S, Bunten A, Tan K, Saei A, Jones S, MacDonald P, Watson R, Bennett KF, Chadborn T. Can uptake of childhood influenza immunisation through schools and GP practices be increased through behaviourally-informed invitation letters and reminders: two pragmatic randomized controlled trials. BMC Public Health. 2023 Jan 20;23(1):143. doi: 10.1186/s12889-022-14439-4.
Other Identifiers
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2016_FluInvGP
Identifier Type: -
Identifier Source: org_study_id
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