Table 3.
Hazard ratios (HR) for all-cause revision according to previous surgery yes/no
| Previous surgery (events/total number) |
Cox regression |
Competing-risks regression |
||||
|---|---|---|---|---|---|---|
| Included cases | yes | no | HR (CI) | aHR (CI) a | HR (CI) | aHR (CI) a |
| All TKAs | 70/844 | 134/3,101 | 1.9 (1.4–2.6) | 1.5 (1.1–2.1) | 2.0 (1.5–2.6) | 1.6 (1.2–2.1) |
| Only first TKA | 67/756 | 109/2,476 | 2.0 (1.5–2.8) | 1.6 (1.2–2.2) | 2.1 (1.6–2.8) | 1.6 (1.2–2.2) |
a
Adjusted for age, sex, ASA score and year of surgery using Cox regression and competing-risks regression