Table 1.
Study group characteristics
| Overall | VLR | LR | p Value | |
|---|---|---|---|---|
| No. men | 7,486 | 153 | 7,333 | |
| Mean ± SD age | 57.3 ± 6.4 | 58.8 ± 6.0 | 57.3 ± 6.4 | 0.004 |
| No. race (%): | 0.035 | |||
| White | 6,699 (89.5) | 129 (84.3) | 6,570 (89.6) | |
| Nonwhite | 787 (10.5) | 24 (15.7) | 763 (10.4) | |
| Mean ± SD surgery yr | 2000.7 ± 5.2 | 2005.4 ± 3.2 | 2000.6 ± 5.2 | <0.001 |
| Mean ± SD BMI (kg/m2) | 26.9 ± 3.4 | 27.3 ± 3.3 | 26.9 ± 3.4 | 0.200 |
| Mean ± SD PSA at diagnosis (ng/ml) | 5.2 ± 2.2 | 4.9 ± 2.1 | 5.2 ± 2.2 | 0.085 |
| Mean ± SD No. biopsy cores: | ||||
| Obtained | 12.2 ± 3.6 | 12.7 ± 2.3 | 12.1 ± 3.8 (804 men)* | 0.009 |
| Pos | 2.9 ± 2.0 | 1.4 ± 0.5 | 2.9 ± 2.0 (2,857 men)* | <0.001 |
| Mean ± SD % Ca involvement/core | 45.6 ± 28.7 | 20.1 ± 14.5 | 47.1 ± 28.7 (2,543 men)* | <0.001 |
| Mean ± SD PSA density (units) | 0.103 ± 0.054 | 0.081 ± 0.032 | 0.103 ± 0.054 (7,031 men)* | <0.001 |
*
Sample size differs from that of total LR cohort since VLR disease specific data were not available on all men with LR disease.