Table 2. Effect size (with 95% confidence interval) in several sexual parameters across randomized controlled trials evaluating the effect of testosterone treatment vs. placebo.

Sexual parameter	No. of trials included	No. of patients included	Outcome
Erectile function component
Overall erectile function componenta	24	1,473	0.82 [0.47~1.17]*
Overall sexual-related function componentb	19	1,341	0.75 [0.37~1.12]**
Sleep-related erections	10	436	0.87 [0.47~1.27]**
Libido component
Overall libido component	17	1,111	0.81 [0.47~1.17]**
Orgasm component
Overall orgasmic component	10	677	0.68 [0.34~1.02]**
Other sexual parameters
Frequency of intercourse	10	327	0.75 [0.33~1.16]**
Overall sexual satisfaction	9	618	0.80 [0.41~1.20]**
Overall sexual function	10	990	0.67 [0.22~1.12]**

^*p<0.001, ^**p<0.0001. ^aIncluding coital and non coital erections; ^bOnly coital erections considered.

Adapted from Corona G et al (J Sex Med 2014;11:1577-92) [26].