Table 2.
Comparison of mean Mal-IIEF-15 domain scores, SDI-2-BM, total testosterone and prolactin in patients with sexual partners in the MMT and BMT groups
| MMT (n = 95) | BMT (n = 31) | Mean differencea | p valueb | |
|---|---|---|---|---|
| mean ± SD | mean ± SD | |||
| Mal-IIEF-15 domain | ||||
| Erectile function | 21.09 ± 7.91 | 23.33 ± 7.71 | − 2.23 | 0.23 |
| Orgasmic functionc | 7.21 ± 4.97 | 7.15 ± 2.93 | 0.06 | 0.96 |
| Sexual desire | 6.14 ± 1.76 | 7.59 ± 1.54 | − 1.46 | 0.001** |
| Intercourse satisfaction | 8.59 ± 3.67 | 9.60 ± 3.54 | − 1.01 | 0.25 |
| Overall satisfaction | 7.09 ± 2.31 | 7.93 ± 2.14 | − 0.11 | 0.84 |
| Total | 48.87 ± 17.10 | 59.60 ± 15.97 | − 4.75 | 0.23 |
| DSD | 27.74 ± 10.95 | 33.39 ± 11.18 | − 5.66 | 0.04* |
| SSD | 5.25 ± 5.00 | 4.15 ± 3.74 | 1.09 | 0.37 |
| Total testosterone (nmol/L) | 12.46 ± 7.64 | 18.45 ± 9.40 | − 5.99 | 0.005** |
| Total testosterone (ng/dL) | 359.37 ± 220.35 | 532.13 ± 271.11 | ||
| Prolactin (μIU/mL) | 162.12 ± 102.69 | 165.20 ± 67.71 | − 2.77 | 0.91 |
BMT, buprenorphine maintenance treatment, MMT, methadone maintenance treatment; Mal-IIEF-15, Malay version of the International Index of Erectile Function 15; SDI-2-BM, Malay version of the Sexual Desire Inventory-2; DSD, dyadic sexual desire; SSD, solitary sexual desire; SD, standard deviation, nmol/L, nanomoles per liter; ng/dL, nanograms per decilitre; μIU/mL, macro international units per milliliter
* p < 0.05, ** p < 0.01
aAdjusted mean difference with education Level, hepatitis C status, total Malay version of self-rated Montgomery-Asberg Depression Rating Scale (MADRS-BM) score, social functioning total score, health total score and Q score for tobacco as covariates
bAdjusted for multiple comparisons using Bonferroni correction
cA generalized linear model approach was used because the variables were not normally distributed