Retrospective Cohort Study
Copyright ©The Author(s) 2023.
World J Methodol. Mar 20, 2023; 13(2): 18-25
Published online Mar 20, 2023. doi: 10.5662/wjm.v13.i2.18
Table 5 Operating time of high vs low-volume surgeons

High-volume, n = 280, mean ± SD
Low-volume, n = 273, mean ± SD
P value
Total set-up time (min)47.5 ± 9.635.2 ± 9.3< 0.0001
Total operating time (min)224.4 ± 73.8140.0 ± 62.7< 0.0001
Total room time (min)303.9 ± 82.1200.3 ± 68.1< 0.0001