Table 2. Association between the basic data and smoke.
| Characteristics | No smoking (n=188) | Smoking (n=185) | P |
|---|---|---|---|
| Age (years) | 33.30±8.25 | 32.79±7.14 | 0.53 |
| BMI (kg/m2) | 23.05±3.42 | 23.97±3.88 | 0.02* |
| IIEF-5 | 16.81±5.66 | 16.30±5.82 | 0.39 |
| Hemoglobin (g/L) | 154.96±10.18 | 160.34±10.36 | <0.001** |
| Systolic pressure (mmHg) | 123.37±11.71 | 121.66±11.36 | 0.30 |
| Blood sugar (3.9–6.1 mmol/L) | 5.34±0.81 | 5.50±1.61 | 0.27 |
| Cholesterol (2.8–5.17 mmol/L) | 4.96±1.36 | 4.86±1.01 | 0.49 |
| Triglyceride (0.56–1.7 mmol/L) | 1.65±1.52 | 1.99±1.32 | 0.03* |
| HDL (1.08–1.91 mmol/L) | 1.27±0.37 | 1.19±0.20 | <0.001** |
| LDL (2.07–3.37 mmol/L) | 3.07±0.77 | 3.11±0.76 | 0.66 |
| FSH (0.95–11.95 U/L) | 4.65±2.62 | 4.07±1.90 | 0.02* |
| LH (1.2–7.8 U/L) | 5.14±2.13 | 4.93±1.93 | 0.35 |
| PRL (1.61–18.77 ng/mL) | 13.91±8.76 | 11.54±8.27 | 0.004* |
| Vitamin D (26–65 ng/mL) | 27.75±8.88 | 26.67±8.80 | 0.29 |
Data are expressed as the mean ± SD. *, P<0.05; **, P<0.001. SD, standard deviation; BMI, body mass index; IIEF, International Index of Erectile Function; HDL, high-density lipoprotein; LDL, low-density lipoprotein; FSH, follicle-stimulating hormone; LH, lutropin; PRL, prolactin.