Screening for Diabetic Retinopathy with or without a Copayment in a Randomized Controlled Trial: Influence of the Inverse Care Law – Corrected Proof
Objective:
To examine whether the inverse care law operates in a screening program for diabetic retinopathy (DR) based on fee for service in Hong Kong.
Design:
Randomized controlled trial.
Participants:
All those with type 1 or 2 diabetes from 2 clinics were recruited.
Intervention:
Diabetic retinopathy screening with a small copayment versus free access in a publicly funded family medicine service.
Main Outcome Measures:
Uptake of screening and severity of DR detected. Association between these outcome variables and independent variables were determined using multivariate logistic regression models and reported as odds ratios (ORs).
Results:
After randomization, 1387 subjects in the (Read more...)