TABLE 5.
Binary Logistic Regression of Risk Factors for Change of Surgeons in Patients Who Underwent Revision ACLRa
| Risk Factor | Adjusted HR (95% CI) | P |
|---|---|---|
| Age, y | ||
| <20 | Reference | |
| ≥20 | 1.47 (1.03-2.09) | .033b |
| Surgeon volume, primary ACLR/y | ||
| ≤10 | 10.70 (6.01-19.05) | <.001b |
| 11-30 | 5.46 (3.36-8.86) | <.001b |
| 31-50 | 2.31 (1.47-3.63) | <.001b |
| >50 | Reference | |
| Time between primary and revision ACLR, y | ||
| ≤2 | Reference | |
| >2 | 2.37 (1.67-3.35) | <.001b |
| Ethnicity | ||
| European | Reference | |
| Maori | 2.00 (1.21-3.31) | .007b |
| Pacific | 1.23 (0.71-2.13) | .458 |
| Asian | 2.21 (1.04-4.69) | .04b |
| Other | 0.58 (0.26-1.30) | .183 |
aACLR, anterior cruciate ligament reconstruction; HR, hazard ratio.
bMultivariate analysis suggested a statistically significant difference in the proportion of patients who change surgeons for revision procedures between groups (P < .05).