Table 2.

Summary 2017–2019^*

Variable	Original	ML Model	Difference
Overtime frequency, %	47.54	26.55	–20.99
Undertime frequency, %	36.53	17.50	–19.03
Overtime minutes used	50639	19145	–31494
Overtime cost, $	770437.50	301312.50	–469125.00
OR minutes used, %	72.56	72.65	0.09

OR = operating room.

^*Based on 10 553 cases in 2975 surgeon OR days, with a total rate of machine learning cases achieved of 96.53%.