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Figure 5. Feature importance analysis from the Decision Tree Classifier for surgeon proficiency prediction using MDI. MDI: Mean
decrease in impurity.
DECLARATIONS
Authors’ contributions
Made substantial contributions to the conception and design of the study: Choksi S, Filicori F
Performed data acquisition and assisted with data analysis: Ballo M, Farrell A, King B, Nussbaum J, Reisner
A, Taffurelli G
Performed data analysis and interpretation: Choksi S, Turkcan M, Narasimhan S, Hu Y, Zang C, Kostic Z
Drafted the manuscript and contributed to significant revisions: Choksi S, Ballo M, Turkcan M,
Narasimhan S, Filicori F, Kostic Z
Availability of data and materials
The data are available from the corresponding author upon reasonable request.

