Short description of the study This study evaluated the effectiveness of a 1-day flexible bronchoscopy simulation-based training program that was implemented across 7 different simulation centers in the Netherlands. Participants first performed a pre-test, consisting of two simulator tasks (Task 1 and Task 2). Then they practiced their bronchoscopy skills under supervision of an experienced pulmonologist. At the end of the day, participants performed a post-test. Outcome measures were simulator metrics of Task 1, procedure time of Task 2 and observational assessment tool scores of participants’ performance of Task 2. Additionally, participants’ dexterity was rated by a blinded experts by means of video recordings of their scope handling. Short description of the data file The “240320 N100 Final dataset.sav” file contains the whole dataset, with participant age, gender, simulation experience, endoscopy experience, gaming experience and all outcome measures. In the Variable View the Value Labels (i.e. 0 = male, 1 = female, 0 = no gaming experience, etc.) can be found.

Overview of parameters in the .sav file, pre = pretest, post = posttest. For the assessment tools (Supplemental Digital Content 1 and Supplemental Digital Content 2): Higher scores indicate a better performance (i.e. 3 for R_Anatomy_pre means all segments in the right lung correctly named, 1 for R_Anatomy_pre means 2 or more segments in the right lung incorrectly named).

Age: age in years Gender: gender Sim_exp: experience with simulation-based training/practice Broncho_exp: experience with performing bronchoscopies Endo_exp: experience with performing endoscopies Gaming_exp: gaming experience

Simulator metrics task 1:

Lumen_pre: % of time in mid lumen Lumen_post: % of time in mid lumen N_wall_pre: number of wall contacts N_wall_post: number of wall contacts Time_task1_pre: time Time_task1_post: time Scope_wall_pre: scope wall contacts Scope_wall_post: scope wall contacts

Assessment tool parameters task 2:
Introduction_pre: scope introduction Introduction_post: scope introduction RL_reach_pre: entered segments right lung RL_reach_post: entered segments right lung LL_reach_pre: entered segments left lung LL_reach_post: entered segments left lung Systematic_pre: procedure (systematically reached or not) Systematic_post: procedure (systematically reached or not) Intra_move_pre: intra-bronchial scope movement overall Intra_move_post: intra-bronchial scope movement overall Scope_handl_pre: dexterity Scope_handl_post: dexterity Hand_wrist_pre: hand-wrist movements Hand_wrist_post: hand wrist movements Time_task3_pre: procedure time task 2 Time_task3_post: procedure time task 2 R_Anatomy_pre: segments correctly named right lung R_Anatomy_post: segments correctly named right lung L_anatomy_pre: segments correctly named left lung L_anatomy_post: segments correctly named left lung Overall_pre: overall rating Overall_post: overall rating

Dexterity assessment task 2:

Handthumb_pre: hand thumb position MIHP_LOD_pre: movements in horizontal plane level of discrepancy MIHP_TOD_pre: movements in horizontal plane level time Aggr_MIHP_pre: movements in horizontal plane final score Bending_LOD_Pre: bending level of discrepancy Bending_TOD_pre: time of suboptimal bending AS_Bending_pre: bending final score Del_wrist_mov_pre: deliberate wrist movements level Time_DWM_pre: deliberate wrist movements time Aggreg_DWM_pre: deliberate wrist movements final score Tot_score_pre: total score Fluency_pre: fluency Handthumb_post: hand thumb position MIHP_LOD_post: movements in horizontal plane level of discrepancy MIHP_TOD_post: movements in horizontal plane level time Aggr_MIHP_post: movements in horizontal plane final score Bending_LOD_post: bending level of discrepancy Bending_TOD_post: time of suboptimal bending AS_Bending_post: bending final score Del_wrist_mov_post: deliberate wrist movements level Time_DWM_post: deliberate wrist movements time Aggreg_DWM_post: deliberate wrist movements final score Tot_score_post: total score Fluency_post: fluency WallMinNewPre: wall contacts per minute WallMinNewPost: wall contacts per minute