Number of UKA patients | UKA patients converted to TKA | Average time between UKA and TKA | |||||||
---|---|---|---|---|---|---|---|---|---|
# | % | p | RR | 95% CI | Days | Δ | 95% CI | ||
Total | 20,592 | 447 | 2.17% | - | - | - | 987.378 (SD 764.815) | - | - |
Age at UKA | |||||||||
< 70 | 8,018 | 223 | 2.78% | - | - | - | 988.852 (SD 781.501) | - | - |
70–79 | 9,433 | 168 | 1.78% | < 0.0001 | 0.6404 | (0.5253, 0.7806) | 980.262 (SD 729.328) | 8.590 | (-13.921, 31.101) |
> 80 | 3,191 | 43 | 1.35% | < 0.0001 | 0.4845 | (0.3505, 0.6698) | 806.558 (SD 768.786) | 182.294 | (151.274, 213.314) |
Gender | |||||||||
Female | 10,543 | 264 | 2.50% | - | - | - | 971.417 (SD 746.139) | - | - |
Male | 9,933 | 169 | 1.70% | < 0.0001 | 0.6795 | (0.5613, 0.8226) | 965.391 (SD 785.201) | 6.026 | (-14.9808, 27.0328) |