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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: J Urol. 2012 Oct 9;189(4):1415–1420. doi: 10.1016/j.juro.2012.10.002

Table 1.

Demographics of CAMUS study participants

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)