Table 1 Characteristics of patients and tumors at the initial resection
Variable | Group 1 | Group 2 | P-value |
|---|---|---|---|
Female sex (n, %) | 22 (20.37) | 32 (23.38) | 0.70 |
Male sex (n, %) | 86 (79.63) | 111 (76.62) | |
Mean age (years) | 66.12 ± 1.52 | 68.59 ± 1.36 | 0.49 |
Number of tumors | 2.63 ± 0.24 | 2.61 ± 0.22 | |
1 (n, %) | 56 (51.85) | 74 (51.75) | 0.95 |
2–5 (n, %) | 38 (35.19) | 50 (34.97) | |
> 5 (n, %) | 14 (12.96) | 19 (13.28) | |
Mean diameter of the neoplasms (cm) | 2.74 ± 0.13 | 2.49 ± 0.11 | 0.10 |
Stage (n, %) | |||
Ta | 60 (55.56) | 87 (60.84) | 0.40 |
T1 | 48 (44.44) | 56 (39.16) | |
Grade (2004)a (n, %) | |||
Low-grade | 25 (23.15) | 49 (34.27) | 0.06 |
High-grade | 83 (76.85) | 94 (65.73) | |