Incentives in Diabetic Eye Assessment by Screening
IDEAS
1 other identifier
interventional
1,051
0 countries
N/A
Brief Summary
This trial is a randomised controlled trial to assess whether annual attendance rates at diabetic eye screening appointments in Kensington, Chelsea and Westminster could be improved by offering invitees a small financial incentive. The research questions are:
- 1.Are incentives an effective strategy to encourage participation in the screening programme?
- 2.Does the design of the financial incentive scheme affect its effectiveness in influencing participation in health screening?
- 3.Does the choice of incentive scheme, if successful, attract patients who have a different demographic or socioeconomic status to those who attend screening regularly?
- 4.Is offering these incentives a cost-effective strategy for enhancing participation?
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable diabetes
Started Mar 2015
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 15, 2014
CompletedFirst Posted
Study publicly available on registry
January 16, 2015
CompletedStudy Start
First participant enrolled
March 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2016
CompletedResults Posted
Study results publicly available
October 26, 2018
CompletedOctober 19, 2023
October 1, 2023
9 months
December 15, 2014
March 23, 2017
October 18, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Patients Attending Screening Appointment
The participants will be invited to a specific appointment between three months and one year from their previous missed appointment. The primary outcome refers to the number of participants who did attend their appointment.
At designated appointment date (between three months and one year from previous missed appointment)
Secondary Outcomes (1)
Number of Patients Requiring Intervention After Sight Outcome From Diabetic Retinopathy Screening.
Number of patients with additional management triggered as a result of test at designated screening appointment (between three months and one year)
Study Arms (3)
Control
ACTIVE COMPARATORThe intervention for the "Control" group consists of the standard invitation letter from the Screening service. (The trial is testing the impact of the different invitation letters on the primary outcome of screening attendance.)
Fixed Incentive
EXPERIMENTALThe intervention for the "fixed incentive" group consists of the standard invitation letter from the Screening service, with additional text offering a fixed financial incentive (£10) if they attend screening. (The trial is testing the impact of the different invitation letters on the primary outcome of screening attendance.)
Probabilistic Incentive
EXPERIMENTALThe intervention for the "probabilistic incentive" group consists of the standard invitation letter from the Screening service, with additional text offering a probabilistic financial incentive (entry into a lottery offering at least a 1 in 100 chance to win £1000) if they attend screening. (The trial is testing the impact of the different invitation letters on the primary outcome of screening attendance.)
Interventions
Participants receiving the "fixed financial incentive" intervention will be sent a screening appointment letter offering them a fixed amount of £10 if they attend their screening appointment.
Participants receiving the "probabilistic financial incentive" intervention will be sent a screening appointment letter offering them an entry into a lottery with at least a 1 in 100 chance of winning £1000 if they attend their screening appointment.
Participants receiving the "active comparator", (i.e. "control") intervention, will be sent the standard diabetic retinopathy screening appointment letter.
Eligibility Criteria
You may qualify if:
- Diabetic patients who were invited to screening in the last 24 months on a yearly basis and failed to attend or contact the screening service to rearrange an appointment
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Imperial College Londonlead
- National Health Service, United Kingdomcollaborator
Related Publications (2)
Scanlon PH, Carter SC, Foy C, Husband RF, Abbas J, Bachmann MO. Diabetic retinopathy and socioeconomic deprivation in Gloucestershire. J Med Screen. 2008;15(3):118-21. doi: 10.1258/jms.2008.008013.
PMID: 18927093BACKGROUNDMarteau TM, Ashcroft RE, Oliver A. Using financial incentives to achieve healthy behaviour. BMJ. 2009 Apr 9;338:b1415. doi: 10.1136/bmj.b1415. No abstract available.
PMID: 19359291BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Colin Bicknell
- Organization
- Imperial College London
Study Officials
- PRINCIPAL INVESTIGATOR
Colin Bicknell
Imperial College London
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SCREENING
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 15, 2014
First Posted
January 16, 2015
Study Start
March 1, 2015
Primary Completion
December 1, 2015
Study Completion
July 1, 2016
Last Updated
October 19, 2023
Results First Posted
October 26, 2018
Record last verified: 2023-10