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Number of minutes per door swing, analyzed by type of surgical procedure
| Spine surgery | Other surgery | P value | |
|---|---|---|---|
| Phase I | 1.32 (0.20) n = 4 |
1.42 (0.13) n = 10 |
0.6981 |
| Phase II | 1.30 (0.21) n = 3 |
1.83 (0.12) n = 9 |
0.0513 |
| Combined | 1.31 (0.34) n = 7 |
1.61 (0.43) n = 19 |
0.1108 |
n = number of surgical cases
all values are least square mean (standard deviation)
