Table 1 Incidence of revision total knee arthroplasty according to age and gender
|  | Study cohort (n = 260,068) | |
|---|---|---|
Patient factor | Number of patients (%) | Incidence rate (per 100,000 person-years) |
Age | ||
 <65 years | 65,017 (25.0) | 447.2 |
 65–74 years | 140,693 (54.1) | 363.7 |
 ≥75 years | 54,358 (20.9) | 270.9 |
Gender | ||
 Male | 30,388 (11.7) | 537.8 |
 Female | 229,680 (88.3) | 346.1 |