Table 1.
Characteristic (units, [summary statistics]) | Saw palmetto N = 176 | Placebo N= 181 |
---|---|---|
Categorical characteristics [N (%)] | ||
Age (years [N (%)]) | ||
50–59 years | 45 (40%) | 42 (37%) |
60–69 years | 46 (41%) | 48 (42%) |
70–79 years | 21 (18%) | 23 (20%) |
Race [N (%)] | ||
African-American | 4 (4%) | 8 (7%) |
Asian or Pacific Islander | 7 (6%) | 8 (7%) |
White | 94 (84%) | 89 (79%) |
Hispanic | 6 (5%) | 5 (4%) |
Other | 1 (1%) | 2 (2%) |
Continuous characteristics [mean (SD)] | ||
American Urological Association Symptom Index (score) | 15.7 (5.7) | 15.0 (5.3) |
Maximum urinary flow rate (ml/sec) | 11.4 (3.5) | 11.6 (4.3) |
Post-void residual bladder volume (ml) | 80.0 (51.9) | 84.5 (63.8) |
BPH Impact Index (score) | 3.4 (2.2) | 3.7 (2.8) |
PSA (ng/ml) | 2.2 (1.9) | 2.3 (1.1) |