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Incentives in Diabetic Eye Assessment by Screening

NCT02339909 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 1051

Last updated 2023-10-19

Study results available
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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?

Conditions

Interventions

BEHAVIORAL

Fixed financial incentive

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.

BEHAVIORAL

Probabilistic financial incentive

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.

BEHAVIORAL

Control

Participants receiving the "active comparator", (i.e. "control") intervention, will be sent the standard diabetic retinopathy screening appointment letter.

Sponsors & Collaborators

  • National Health Service, United Kingdom

    collaborator OTHER_GOV

  • Imperial College London

    lead OTHER

Principal Investigators

  • Colin Bicknell · Imperial College London

Study Design

Allocation
RANDOMIZED
Purpose
SCREENING
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
16 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-03-31
Primary Completion
2015-12-31
Completion
2016-07-31

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Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02339909 on ClinicalTrials.gov