Table 1:
Demographic, clinical information and biopsy outcomes stratified by race
| Continuous Variables |
Black (N = 287) |
Non-Black (N = 277) |
p Value1 |
| Median [IQR] | Median [IQR] | ||
| Age, years | 61.00 (56.00−66.00) | 62.00 (57.00−66.00) | 0.34 |
| Body Mass Index, kg/m2 | 27.5 (24.4−31.7) | 27.1 (24.4−29.8) | 0.21 |
| 2Serum PSA, ng/mL | 8.10 (5.60−16.10) | 5.63 (4.20−10.00) | <0.001 |
| Prostate volume, cm3 | 41.4 (30.0−59.0) | 42.4 (28.6−62.1) | 0.71 |
| PSA density, ng/mL/cm3 | 0.22 (0.13−0.48) | 0.15 (0.09−0.24) | <0.001 |
| Free PSA, % | 11.0 (8.4−20.4) | 16.0 (9.5−21.3) | 0.17 |
| West African Ancestry, % | 80.4 (70.4−86.4) | 4.7(2.3−7.8) | <0.001 |
| Annual Income (×1000) | $20 ($10−$30) | $30 ($10−$40) | <0.001 |
| Categorical Variables |
Black (N = 287 ) |
Non-Black (N = 277 ) |
p Value3 |
| N (%) | N (%) | ||
| Recruitment Site | |||
| · Cook County4 | 235 (81.9) | 131 (47.3) | <0.001 |
| · JBVAMC4 | 16 (5.6) | 6 (2.1) | |
| · UIC4 | 5 (1.7) | 1 (0.4) | |
| · Northwestern5 | 27 (9.4) | 131 (47.3) | |
| · U of Chicago5 | 4 (1.4) | 8 (2.9) | |
| Clinical Risk Factors | |||
| Abnormal DRE | 95 (33.1) | 85 (30.7) | 0.56 |
| Family History | 45 (15.7) | 61 (22.0) | 0.05 |
| 5-ARI use (current) | 33 (11.5) | 34 (12.3) | 0.78 |
| History of Clinical BPH | 106 (36.9) | 126 (45.5) | 0.04 |
| Substance Use History | |||
| Alcohol use (>10 drinks per week regularly) | 241 (84.0) | 235 (84.8)| | 0.69 |
| Tobacco use (ever, >100cigs) | 186 (64.8) | 155 (56.0) |
0.04 |
|
Sociodemographic Factors | |||
| High School Completed | 116 (40.4) | 159 (57.4) | <0.001 |
| Married | 112 (39.0) | 200 (72.2) | <0.001 |
1
Using Mann-Whitney U-tests;
2
PSA was doubled for 5-a-reductase inhibitor use;
3
Using χ2 tests;
4
bold type indicates p <0.05; Publicly funded sites;
5
Privately funded sites