Table 1. Distribution of Clinical and Pathological Characteristics of 65,633 Radical Prostatectomy Patients by Surgical Margin Status.
| Negative Margins N (%) | Positive Margins N (%) | P-value | |
|---|---|---|---|
| Overall | 51,728 (78.8) | 13,905 (21.2) | |
| Age (years) | |||
| < 55 | 9,699 (79.3) | 2,533 (20.7) | 0.27 |
| 55 – 59 | 11,499 (79.1) | 3,036 (20.9) | |
| 60 – 64 | 12,497 (78.8) | 3,360 (21.2) | |
| 65 – 69 | 11,084 (78.3) | 3,071 (21.7) | |
| 70 + | 6,947 (78.5) | 1,904 (21.5) | |
| Race | |||
| Caucasian | 43,216 (78.3) | 11,313 (20.8) | < 0.001 |
| African-American | 5,359 (75.3) | 1,754 (24.7) | |
| Other | 3,153 (79.0) | 838 (21.0) | |
| Tumor Registry | |||
| San Francisco-Oakland | 4,988 (82.4) | 1,066 (17.6) | < 0.001 |
| Connecticut | 4,744 (81.4) | 1,084 (18.6) | |
| Detroit (Metro) | 7,341 (79.9) | 1,843 (20.1) | |
| Hawaii | 1,039 (79.3) | 271 (21.7) | |
| Iowa | 4,341 (78.1) | 1,221 (22.0) | |
| New Mexico | 2,427 (84.3) | 453 (15.7) | |
| Seattle/Puget Sound | 6,296 (77.6) | 1,821 (22.4) | |
| Utah | 3,083 (71.5) | 1,231 (28.5) | |
| Atlanta (Metro) | 3,194 (88.7) | 407 (11.3) | |
| San Jose-Monterey | 2,542 (75.9) | 786 (23.6) | |
| Los Angeles | 11,733 (75.9) | 3,722 (24.1) | |
| Year of Diagnosis | |||
| 1998 | 4,987 (79.8) | 1,261 (20.2) | < 0.001 |
| 1999 | 5,569 (78.4) | 1,536 (21.6) | |
| 2000 | 5,545 (78.3) | 1,540 (21.7) | |
| 2001 | 5,854 (78.1) | 1,643 (21.9) | |
| 2002 | 5,884 (76.5) | 1,812 (23.5) | |
| 2003 | 5,710 (77.7) | 1,632 (22.2) | |
| 2004 | 6,240 (78.4) | 1,715 (21.6) | |
| 2005 | 5,716 (80.3) | 1,407 (19.8) | |
| 2006 | 6,223 (82.1) | 1,359 (17.9) | |
| Pathologic Stage | |||
| pT2 | 46,818 (82.3) | 10,074 (17.7) | < 0.001 |
| pT3a | 4,910 (56.2) | 3,831 (43.8) | |
| Grade | |||
| Lower Grade | 36,786 (81.7) | 8,233 (18.3) | < 0.001 |
| Higher Grade | 14,942 (72.5) | 5,672 (27.5) |