Vouchers to Increase Uptake of Already Free Eye Care

Not Applicable

Completed

• Conditions: Eye Diseases; Glaucoma
• Interventions: Behavioral: Voucher With Value Information; Behavioral: Voucher Without Value Information

• Registration Number: NCT04426331
• Lead Sponsor: Johns Hopkins University

Brief Summary

This study was intended to test if reframing an offer for a free follow-up eye examination could increase uptake within ongoing community-based screening program for low-income and minority populations in Baltimore City. This study evaluated the effect of offering participants a physical voucher they were told was redeemable for free follow-up, relative to simply telling participants that the follow-up appointment would be free of charge. The investigators assessed two forms of vouchers, one with estimated value information, and one without. The underlying hypothesis was that reframing these already free offers would increase uptake by increasing perceived offer value and increasing a sense of regret from not taking advantage of a "good deal."

Detailed Description

Not available

Study Timeline

• Study Start: 2017-05-05
• Primary Completion: 2019-01-01
• Study Completion: 2019-01-01
• Status Verified: 2020-06
• Study First Submitted: 2020-06-07
• Study First Submitted QC: 2020-06-09
• Study First Posted: 2020-06-11
• Last Update Submitted: 2020-06-11
• Last Update Posted: 2020-06-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 739

Inclusion Criteria

• Referred for follow-up at a Screening to Prevent Glaucoma (SToP) study screening event (overarching observational study from which trial sample was drawn). SToP participants were referred for follow-up for any of the following conditions: (1) VA worse than 20/40 in at least 1 eye despite autorefraction; (2) signs of retinal abnormalities on fundus photography; (3) uninterpretable fundus photography; (4) cup-to-disc ratio (CDR) greater than or equal to 0.9, and/or CDR between 0.7 and 0.9 with visual field defects or history of glaucoma; and (5) IOP of 23 mm Hg or greater.

Exclusion Criteria

• SToP participants who were not referred at the time of screening but later contacted after review of fundus photography
• SToP participants who were referred for follow-up but stated at the time of counseling that they were already under the care of an eye doctor

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Voucher With Value Information	Voucher With Value Information	In addition to receiving the standard approach above, individuals being referred from screening events randomized to "Voucher With Value Information" received a personal voucher, which differed from the voucher in the second arm since it included a statement of value.
Voucher Without Value Information	Voucher Without Value Information	In addition to receiving the standard approach above, individuals being referred from screening events randomized to "Voucher Without Value Information" received a personal voucher.

Primary Outcome Measures

Name	Time	Method
Uptake of follow-up appointment	Within 90 days of the date of screening	The primary endpoint was attending a follow-up appointment, either on the initially scheduled or on a rescheduled date within 90 days of the date of screening. Individuals who did not meet this endpoint either stated that they were not interested in follow-up at the screening event itself, cancelled or did not show for their appointments on 3 occasions, stated that they were not interested in follow-up when study staff attempted to reschedule, or did not show for an appointment and could not be reached for rescheduling after 3 attempts.

Secondary Outcome Measures

Name	Time	Method
Uptake of initial appointment	Within 90 days of the date of screening	Binary indicator for completion of the initially scheduled appointment.

Trial Locations

Locations (1)

Johns Hopkins Hospital - Wilmer Eye Institute; 🇺🇸 Baltimore, Maryland, United States