Table 1.
Clinical characteristics of men with erectile dysfunction and normal erectile function (controls)
| Characteristics | Organic ED (n=74) | Psychogenic ED (n=69) | Control (n=52) |
|---|---|---|---|
| Age (year) | 30.5±7.0 | 30.2±6.4 | 29.9±7.9 |
| Course (month) | 25.7±24.6 | 20.3±24.9 | - |
| IIEF-5 score | 10.0±4.2 | 11.5±5.1 | - |
| PHQ-9 score | 9.2±5.8 | 8.32±5.2 | - |
| GAD-7 score | 7.8±5.7 | 6.37±4.4 | - |
| Height (m) | 1.7±0.1 | 1.73±0 | 1.7±0.1 |
| Weight (kg) | 71.6±11.8 | 72.6±11.4 | 70.1±8.7 |
| BMI (kg m−2) | 23.9±3.1 | 24.8±3.8 | 23.9±2.6 |
| TT (ng l−1) | 5.0±1.4 | 4.7±1.4 | 4.3±1.1 |
| CFT (pmol l−1) | 332.4±96.3 | 308.4±82.8 | 297.1±4.9 |
| BAT (ng ml−1) | 2.5±0.7 | 2.3±0.5 | 2.1±0.4 |
| E2 (pg ml−1) | 36.9±10.2# | 25.5±8.7 | 22.8±8.6 |
| E2/TT (pg ng−1) | 7.7±3.1# | 6.3±2.9 | 4.9±2.0 |
| PRL (ng ml−1) | 16.5±7.3 | 16.7±8.4 | 15.9±4.0 |
| LH (mIU ml−1) | 5.3±2.0 | 5.1±2.0 | 4.6±1.2 |
| FSH (mIU ml−1) | 3.8±2.2 | 4.2±1.8 | 3.9±1.7 |
| SHBG (nmol l−1) | 34.8±12.9 | 36.9±16.0 | 34.4±16.8 |
| ALB (g l−1) | 44.9±2.7 | 45.5±3.3 | 49.2±2.8 |
| MAPR (tip) (%) | 49.7±10.0* | 67.0±5.7 | - |
| MAPR (base) (%) | 58.1±13.8* | 71.6±6.6 | - |
| PTUM (tip) (%) | 33.5±11.2* | 38.6±13.4 | - |
| PTUM (base) (%) | 35.7±9.7* | 40.1±10.8 | - |
| Erection duration (min) | 24.0±15.6 | 25.3±13.0 | - |
Data are presented as mean±s.d. #P<0.05, organic ED group compared with psychogenic ED group and control group; *P<0.05, organic ED group compared with psychogenic ED group. IIEF-5: International Index of Erectile Function 5 questionnaire; PHQ-9: patient health questionnaire; GAD-7: generalized anxiety disorder scale; BMI: body mass index; TT: total testosterone; CFT: calculated free testosterone; BAT: bioactive testosterone; E2: estradiol; E2/TT: estradiol to total testosterone ratio; PRL: prolactin; LH: luteinizing hormone; FSH: follicle-stimulating hormone; SHBG: sex hormone-binding globulin; ALB: albumin; MAPR: maximal average penile rigidity; PTUM: penile tumescence; -: no data was detected. s.d.: standard deviation; ED: erectile dysfunction