| Term | HR | 95% CI | P-value |
| Assistant vs. full | 3.09 | 1.52 - 6.29 | 0.002 |
| Associate vs. full | 1.29 | 0.59 - 2.83 | 0.529 |
| Male vs. female | 1.38 | 0.76 - 2.51 | 0.292 |
| Non-white vs. white | 1.19 | 0.70 - 2.02 | 0.529 |