This dataset provides supplementary input data for a systematic literature review and meta-analysis, examining the effects of mobility-impaired individuals, specifically wheelchair users, on pedestrian egress times. It includes the following variables: short_trial_name: A unique identifier for each trial. independent variables: Factors such as the number of attendees, bottleneck width, and mobility profiles (e.g., individuals with or without wheelchair usage). left_shifted_time: Standardized start time for egress, adjusted for comparability across trials. lower_left_no_of_people: The number of individuals who passed through the bottleneck at the standardized start time. right_shifted_time: Standardized end time for egress. right_left_no_of_people: The number of individuals who passed through the bottleneck by the standardized end time.