A behaviour change technique reminder intervention for diabetic retinopathy screening

Evaluating the efficacy of a behaviour change technique-based and linguistically tailored e-mail-based reminder to increase attendance to diabetic retinopathy screening

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN18167419

Enrollment

330

Registered

2025-07-07

Start date

2025-07-01

Completion date

Unknown

Last updated

2026-04-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic retinopathy (DR) Eye Diseases

Interventions

Eligible participants will be randomly assigned to the intervention or control condition using SAS statistical software. Arm 1: Control Group - does not receive a reminder, and Arm 2: Reminder Group -

Eligibility

Sex/Gender

All

Age

18 Years to 110 Years

Inclusion criteria

Inclusion criteria: 1. Are registered to the Community Diabetes Education Program of Ottawa at the community health centre 2. Have T1DM or T2DM 3. Have consented to virtual communications from CHC 4. Are 18 years of age or older 5. Have an active chart (i.e., chart has been updated within the last two years 6. Have not already attended a DRS appointment with this CHC

Exclusion criteria

Exclusion criteria: 1. Are not registered to the Community Diabetes Education Program of Ottawa at the community health centre 2. Do not have T1DM or T2DM 3. Have not consented to virtual communications from CHC 4. Are not 18 years of age or older 5. Do not have an active chart (i.e., chart has been updated within the last two years 6. Have already attended a DRS appointment at this CHC

Design outcomes

Primary

Measure	Time frame
Diabetic retinopathy (DRS) screening attendance is measured using data pulled from a study-specific tab in the participants' electronic medical records, which tracks participant attendance and booking. DRS screening attendance will be measured at the end of the trial, after data collection has closed and the debrief has been sent to all participants.	—

Secondary

Measure	Time frame
The following secondary outcomes are measured using data pulled from a study-specific tab in the participants' electronic medical records at the end of the trial, after data collection has closed and the debrief has been sent to all participants: 1. DRS appointment booking, tracked using participant attendance and booking 2. Subgroup analysis (age, gender/sex, language, prior DRS, distance to community health centre from place of residence in kilometers), tracked using these pre-selected patient demographic data	—

Measure

Time frame

The following secondary outcomes are measured using data pulled from a study-specific tab in the participants' electronic medical records at the end of the trial, after data collection has closed and the debrief has been sent to all participants: 1. DRS appointment booking, tracked using participant attendance and booking 2. Subgroup analysis (age, gender/sex, language, prior DRS, distance to community health centre from place of residence in kilometers), tracked using these pre-selected patient demographic data

—

Countries

Canada

Contacts

Public ContactJenny Olson

jolson@ohri.ca-

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 23, 2026