Table 2 Variation statistics of the rates of knee arthroplasty
National average rate | Max | Min | P90/P10 | CV | SCV | |
|---|---|---|---|---|---|---|
The rates of KA (standardized- all ages) | 132.7 | 270.5 | 64.6 | 2.1 | 0.3 | 8.5 |
The rates of KA (0–64) | 31.7 | 183.3 | 6.3 | 5.2 | 0.7 | 26.1 |
The rates of KA (65 and over) | 878.2 | 1614.5 | 430.9 | 2.0 | 0.3 | 7.2 |