Table 5.
Comparison of the PSM rates of RCC patients in five periods
| PSM | χ2 | P | ||
|---|---|---|---|---|
| N | Ratio/% | |||
| 2013–2014 (N = 1407) | 30 | 2.1 | 20.032 | 0.000 |
| 2015–2016 (N = 1734) | 19 | 1.1 | ||
| 2017–2018 (N = 1924) | 19 | 1.0 | ||
| 2019–2020 (N = 1908) | 13 | 0.7 | ||
| 2021–2022 (N = 2137) | 16 | 0.7 | ||
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