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Abstract #108043 Published in IGR 23-4
Randomized control trial of the impact of Patient Decision Aid (PDA) developed for Chinese primary open-angle glaucoma patients
Zhu MM; Choy BN; Lam WW; Shum JOphthalmic Research 2023; 0:
INTRODUCTION: Patient Decision Aid (PDA) is a tool to prompt shared decision-making. The aim of this study was to evaluate the impact of a PDA on Chinese primary open angle glaucoma (POAG) patients. METHODS: All subjects were randomized into control and PDA group. The questionnaires, including 1) Glaucoma knowledge; 2) 8-item Morisky medication adherence scale (MMAS-8); 3) 10-item glaucoma medication adherence self-efficacy scale (GMASES-10); and 4) 16-item decision conflict scale (DCS), were evaluated at baseline, 3 and 6 months follow up. RESULTS: Totally, 156 subjects participated in this study, including 77 in the control group and 79 in the PDA group. Compared to the control group, PDA group showed around 1 point more improvement in disease knowledge at both 3 and 6 months (both p < 0.05), 2.5[95%CI(1.0, 4.1)] and 1.9[95%CI(0.2, 3.7)] points more improvement in GMASES-10 at 3 and 6 months respectively, and reduction in DCS by 8.8 [95%CI (4.6, 12.9)] points more at 3 months and 13.5 [95%CI (8.9, 18.0)] points more at 6 months. No difference was detected in MMAS-8. CONCLUSION: PDA led to improvement in disease knowledge and self-confidence in medication adherence, and reduced decision conflict compared to control group for at least 6 months.
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