Table 2.
Descriptive characteristics of 2,060 patients received RP versus cryotherapy after propensity score matching (ratio 1:1) between 2004 and 2015 from the Surveillance Epidemiology and End Results database
| RP | Cryotherapy | P value | |
|---|---|---|---|
| Age, yr mean ± SD | 63.70 ± 7.78 | 65.03 ± 8.06 | <0.001 |
| PSA level (ng/ml), mean ± SD | 6.44 ± 3.43 | 6.50 ± 3.73 | 0.71 |
| Marital status | <0.001 | ||
| Married | 787 (76.4) | 705 (68.4) | |
| Single | 78 (7.6) | 116 (11.3) | |
| Divorced/Widowed | 77 (7.5) | 119 (11.6) | |
| Unknown | 88 (8.5) | 90 (8.7) | |
| Race | <0.001 | ||
| White | 873 (84.8) | 804 (78.1) | |
| Black | 87 (8.4) | 178 (17.3) | |
| Other | 58 (5.6) | 36 (3.5) | |
| Unknown | 12 (1.2) | 12 (1.2) | |
| T stage | <0.001 | ||
| T1 | 636 (61.7) | 673 (65.3) | |
| T2a | 340 (33) | 242 (23.5) | |
| T2b | 54 (5.2) | 115 (11.2) | |
| GS biopsy | 0.0071 | ||
| 3+3 | 578 (56.1) | 510 (49.5) | |
| 3+4 | 311 (30.2) | 343 (33.3) | |
| 4+3 | 141 (13.7) | 177 (17.2) | |
| Low risk vs intermediate risk | 0.0005 | ||
| Low risk | 474 (46) | 395 (38.3) | |
| Intermediate risk | 556 (54) | 635 (61.7) |
Abbreviations: SD: standard difference; PSA: prostate-specific antigen; RP: radical prostatectomy.