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. 2004 Nov 1;54(508):819–825.

Table 2.

International Index of Erectile Function domain scores in subjects and partners at 3-month follow-up.

Intervention group mean (SD) Control group (mean SD) Corrected difference(95% CI)a P-valuea
Sample size for analysis
 Subjects 25 25 - -
 Partners 17 22 - -
Erectile function
 Subjects 17.2 (9.7) 8.4 (7.3) 7.0 (2.4 to 11.6) 0.004
 Partners 17.4 (10.7) 10.0 (9.6) 6.9 (1.1 to 12.8) 0.02
Intercourse satisfaction
 Subjects 7.8 (3.9) 4.6 (4.3) 2.6 (0.5 to 4.7) 0.02
 Partners 7.9 (4.3) 4.5 (4.5) 3.3 (0.7 to 6.0) 0.02
Orgasmic function
 Subjects 6.7 (3.3) 4.1 (3.7) 2.2 (0.4 to 4.1) 0.02
 Partners 6.6 (3.9) 4.1 (3.9) 2.3 (-0.09 to 4.6) 0.06
Sexual desire
 Subjects 6.2 (2.3) 5.9 (2.1) 0.4 (-0.5 to 1.4) 0.38
 Partners 7.1 (2.0) 4.7 (2.5) 1.7 (0.4 to 3.0) 0.01
Overall satisfaction
 Subjects 6.1 (2.3) 4.1 (2.5) 1.8 (0.5 to 3.0) 0.008
 Partners 6.9 (5.2) 4.2 (2.9) 2.0 (-0.5 to 4.4) 0.11

aDifference is intervention group minus control group, derived from ANCOVA. SD = standard deviation.