Table 1.
Basic characteristics, laboratory data, and IIEF-5 scores of the study population
| Characteristic | All patients (n=514) |
|---|---|
| Age (year) | 31 (27–35) |
| BMI (kg m−2) | 26.12 (23.89–28.72) |
| Smoking history, n (%) | 134 (26.1) |
| Drinking history, n (%) | 138 (26.8) |
| IIEF-5 score, median (IQR) | 13 (9–16) |
| Mild ED (17–21 points), n (%) | 112 (21.8) |
| Mild to moderate ED (12–16 points), n (%) | 208 (40.4) |
| Moderate ED (8–11 points), n (%) | 82 (16.0) |
| Severe ED (5–7 points), n (%) | 112 (21.8) |
| Laboratory findings at admission | |
| ALT (U l−1), median (IQR) | 28 (18–42) |
| AST (U l−1), median (IQR) | 20 (17–27) |
| Urea (mmol l−1), median (IQR) | 4.9 (4.3–5.6) |
| Creatinine (µmol l−1), median (IQR) | 78 (70–84) |
| Fasting plasma glucose (mmol l−1), median (IQR) | 4.63 (4.37–5.03) |
| UA (µmol l−1), median (IQR) | 475.00 (444.75–508.00) |
| TC (mmol l−1), median (IQR) | 4.57 (4.00–5.24) |
| TG (mmol l−1), median (IQR) | 1.63 (1.19–2.39) |
| HDL-C (mmol l−1), median (IQR) | 0.99 (0.86–1.12) |
| LDL-C (mmol l−1), median (IQR) | 2.98 (2.41–3.55) |
| HbA1c (%), median (IQR) | 5.50 (5.30–5.73) |
| PRL (ng ml−1), median (IQR) | 19.36 (15.23–24.89) |
| Testosterone (ng dl−1), median (IQR) | 374.4 (299.52–472.32) |
| Estradiol (ng l−1), mean±s.d. | 30.58±10.09 |
| Comorbidities, n (%) | |
| Hypertension | 63 (12.3) |
| Diabetes | 18 (3.5) |
| Hyperlipidemia | 161 (31.3) |
| Obesity | 166 (32.3) |
IIEF-5: 5-item version of the International Index of Erectile Function; ED: erectile dysfunction; IQR: interquartile range; s.d.: standard deviation; LDL-C: low-density lipoprotein cholesterol; HDL-C: high-density lipoprotein cholesterol; ALT: alanine aminotransferase; AST: aspartate aminotransferase; UA: uric acid; TG: triglyceride; TC: total cholesterol; PRL: prolactin; HbA1c: glycated hemoglobin