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Comparison of the pT stages of RCC patients in five periods
| pT1 + pT2 | pT3 + pT4 | χ2 | P | |||
|---|---|---|---|---|---|---|
| N | Ratio/% | N | Ratio/% | |||
| 2013–2014 (N = 1392) | 1232 | 87.5 | 160 | 11.5 | 32.628 | 0.000 |
| 2015–2016 (N = 1718) | 1439 | 83.8 | 279 | 16.2 | ||
| 2017–2018 (N = 1903) | 1612 | 84.7 | 291 | 15.3 | ||
| 2019–2020 (N = 1873) | 1524 | 81.4 | 349 | 18.6 | ||
| 2021–2022 (N = 2110) | 1797 | 85.1 | 313 | 14.9 | ||
* RCC, renal cell carcinoma; pT, pathological T
