Table 4. Erection Problems Through 24 and 48 Months by Treatment Group for Those With Erection Problems at Baseline

Acebutolol, n (%) Amlodipine, n (%) Chlorthalidone, n (%) Doxazosin, n (%) Enalapril, n (%) P (4 df) Placebo, n (%)

Through 24-mo visit
 Problem obtaining or maintaining erection 4 (30.8) 5 (45.5) 4 (36.4) 0 (0.0) 4 (50.0) .229 6 (46.2)
 P vs placebo .34 .43 .99 .039 .57
 With problems at baseline, n 13 11 11 8 8 13
Through 48-mo visit
 Problem obtaining or maintaining erection 5 (38.5) 5 (45.5) 5 (45.5) 1 (12.5) 6 (75.0) .278 6 (42.9)
 P vs placebo .60 .43 .99 .16 .66
 Free of problems at baseline, n 13 11 11 8 8 14

n indicates number with problems obtaining or maintaining erection.