Whites | Blacks | Total | |
---|---|---|---|
Number of subjects | 469 | 49 | 518 |
Number with prostate cancer | 27 | 3 | 30 |
Number with positive family history | 43 | 7 | 50 |
Age, nonprostate cancer | |||
n | 439 | 46 | 485 |
Mean (SD) | 63.7 (9.1) | 59.8 (10.8)^{a} | 63.3 (9.4) |
Median (range) | 64 (34–93) | 59.5 (39–81) | 63 (34–93) |
log_{10} (PSA), nonprostate cancer | |||
n | 437 | 46 | 483 |
Mean (SD) | 0.04 (0.40) | 0.12 (0.37)^{b} | 0.04 (0.40) |
Median | 0 | 0.08 | 0.02 |
Range | −1.70, 1.31 | −0.62, 0.89 | −1.70 1.31 |
PSA | |||
Median | 1.01 | 1.20 | 1.05 |
Range | 0.02, 20.70 | 0.24, 7.70 | 0.02, 20.70 |
^{a} The difference in the mean age between the whites and blacks was statistically significant (P = 0.008).
^{b} The difference in the mean log_{10} PSA between the whites and blacks was statistically significant, after adjusting for age (P = 0.03).