Table 2 Number of responses to questions related to sexual wellness during the preceding 4 weeks of investigation periods

From: Improvement of erectile function with Prelox: a randomized, double-blind, placebo-controlled, crossover trial

Questions to be answered withYesorNo Treatment period Group A Group B
   Yes No Yes No
Increased morning erection A placebo B verum 0 25 25 0
  Wash-out 0 25 0 25
  A placebo B verum 25 0 0 25
  Wash-out 0 25 1 24
Sexual dreams A placebo B verum 3 22 22 3
  Wash-out 0 25 0 25
  A placebo B verum 22 3 4 21
  Wash-out 6 19 1 24
Sexual fantasy A placebo B verum 15 10 25 0
  Wash-out 0 25 1 24
  A placebo B verum 23 2 6 19
  Wash-out 14 11 10 15
Easier to initiate A placebo B verum 0 25 25 0
erection Wash-out 0 25 0 25
  A placebo B verum 25 0 0 25
  Wash-out 0 25 0 25
Sustain an erection A placebo B verum 0 25 25 0
  Wash-out 0 25 0 25
  A placebo B verum 25 0 0 25
  Wash-out 0 25 0 25
Partner-noted interest A placebo B verum 5 20 25 0
  Wash-out 0 25 12 13
  A placebo B verum 25 0 0 25
  Wash-out 17 8 3 22
Partner-noted A placebo B verum 6 19 25 0
performance Wash-out 0 25 12 13
  A placebo B verum 25 0 0 25
  Wash-out 17 8 3 22