Development, Validation and Initial Evaluation of Patient-Decision Aid (SUI-PDA©) for Women Considering Stress Urinary Incontinence Surgery271 Investigation of a novel validated Patient Decision Aid (PDA) for women considering SUI surgery in Scotland. The PDA was drafted and face-validated by members of NHS Ayrshire & Arran Continence MDT, later reviewed by the Scottish expert group, including patient representatives. Plain English guidelines were followed to give clear/concise information. The PDA has 4 components: 'What matters to me', 'Care Pathway', 'Procedure Comparison' and 'Request for Treatment'. 40 women completed the PDA, 20 completed the Decisional Conflict Scale (DCS) - which measures uncertainty in choosing options and the factors contributing to this uncertainty. Bulking agent injections were the most common choice of procedure (40%), and its most common acceptance theme was ‘recovery’, followed by colposuspension (35%) and autologous sling (25%). While the option of using the mesh remained on the PDA, no patient had chosen this option. The most common reason for decline conformed to the theme ‘safety’. The total DCS score was 9.29 (range 0.0 – 29.69), suggesting an overall usefulness of the SUI PDA to women considering surgery.