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Table 2 The results of propensity score matching (PSM) in subgroups. (only show T4, T4 + AgeII and T4 + N1 subgroups)

From: Metastatic renal cell carcinoma patients of T4 stage who are in status of N1 stage or older than 76 years cannot benefit from cytoreductive nephrectomy

  Variables CN NS Significant
T4    No. % No % P Method
N 0 53 55.8 29 58 0.937 chi-square
1 42 44.2 21 42
   Mean SD Mean SD P Method
Age (years) 65.2 11.8 65.9 13.6 0.72 t-test
Tumor Size (mm) 91.2 42.7 88.9 42 0.754 t-test
T4 + AgeII    No. % No % P Method
N 0 17 81 10 71.4 0.805 chi-square
1 4 19 4 28.6
   Mean SD Mean SD P Method
Tumor Size (mm) 83.8 22.7 82.1 28.8 0.849 t-test
T4 + N1    Mean SD Mean SD P Method
Age (years) 62.9 10.9 61.8 13.2 0.721 t-test
Tumor Size (mm) 86.4 37.5 89.8 39.8 0.742 t-test