Anne van Dalen

92 I Chapter 3 TABLE 1. Baseline characteristics Role in the operating theatre Age (median) Gender (N per total cases) Years working at this hospital (median) Times participated in Black Box debriefing (N per total cases) Optimal length of debriefing (minutes, mean) Would you recommend participating in a Black Box team debriefing to your colleagues? (N, yes vs no) Primary surgeon 47.0 (IQR 1.0) 31 female 2 male 8.0 (IQR 1.0) 5 (first time) 8 (1-5 times) 5 (6- 10 times) 14 (>10 times) 27.1 (SD 5.7) 33 yes 0 no Assisting surgeon 33.0 (IQR 6.0) 13 female 6 male 1.0 (IQR 4.5) 8 (first time) 11 (1-5 times) 0 (>5 times) 20.7 (SD 8.3) 18 yes 1 no Anaesthesiologist 41.0 (IQR 13) 8 female 12 male 7.0 (IQR 6.0) 9 (first time) 11 (1-5 times) 1 (6-10 times) 0 (>10 times) 32.6 (SD 10.7) 18 yes 2 no Anaesthesiology nurse 31.0 (IQR 26) 7 female 14 male 6.0 (IQR 3.5) 10 (first time) 11 (1-5 times) 0 (>5 times) 33.9 (SD 14.9) 21 yes 0 no Scrub nurse 29.0 (IQR 32) 18 female 1 male 3.8 (IQR 4.3) 5 (first time) 13 (1-5 times) 0 (>5 times) 32.2 (SD 9.9) 18 yes 0 no Circulating nurse 42.5 (IQR 18) 22 female 0 male 5.0 (IQR 17.0) 8 (first time) 13 (1-5 times) 0 (6-10 times) 1 (>10 times) 40.5 (SD 11.5) 22 yes 0 no Medical intern 25.0 (IQR 1.0) 11 female 7 male - 10 (first time) 8 (1-5 times) 0 (>5 times) 27.5 (SD 13.2) 18 yes 0 no