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| (B) Patients distribution according to the operating surgeon | |||||
|---|---|---|---|---|---|
| Surgeon A | Surgeon B | Surgeon C | Surgeon D | Total | |
| Cluster A | 3 | 1 | 1 | 3 | 8 |
| Cluster B | 4 | 2 | 4 | 2 | 12 |
| Cluster C | 5 | 6 | 2 | 3 | 16 |
| Total | 12 | 9 | 7 | 8 | 36 |
Note:
P (χ2) = 0.69, effect size; w = 0.775, post-hoc power; (1−β) = 0.957
