WP8.15 - Systematic Review and Meta-Analysis of Non-Interactive multimedia interventions used In the Informed Consent Process

Abstract Introduction Non interactive multimedia interventions in the form of educational videos regarding a proposed intervention have been increasingly used to enhance information given during informed consent. This review aimed to assess the impact of this modality. Methods This was a subgroup analysis of a larger systematic review and meta-analysis conducted in accordance with a predefined protocol registered on PROSPERO (CRD42023380406). Five databases were searched using pre-defined search criterion in December 2022 for randomised trials of non-interactive multimedia interventions designed to improve the informed consent process. Adults > 18 years with the capacity to consent were included. The Cochrane risk of Bias (ROB) tool was used to assess study quality. Effect measurements were assessed using standard mean differences and risk ratios for continuous variables and dichotomous variables respectively. Meta- analyses were performed using Review Manager (RevMan) version 5.4. Results 49 studies contributing 6149 patients met the inclusion criteria. 43 studies were conducted in an elective setting across a variety of surgical, radiological, endoscopic, oncological, and medical disciplines. Statistically significant Improvement was demonstrated, in subjective understanding (SMD 0.31, 95% CI 0.07 to 0.54 I2 = 0%), immediate (SMD 0.97, 95% CI 0.78 to 1.17, I2=75%), short (SMD 0.77, 95% CI 0.21 to 1.34, I2 = 90% ), long-term knowledge (SMD 1.23, 95% CI 0.26 to 2.19, I2=86%) and satisfaction the informed consent process. (SMD 0.32, (95% CI 0.16 to 0.49, I2 = 74%). Conclusions This review provides a global overview of the impact of non-interactive multimedia interventions demonstrating improvement in numerous outcomes measures. These intervention types should be considered as an informational adjunct during the informed consent process.