Table 2.
Semen Analyses and Sexual Function of the Men in Different BMI Groups.
| Parameters | Body mass index (kg/m2) | p value | |||
|---|---|---|---|---|---|
| <18.5 (n = 38) | 18.5–24.9 (n = 1,803) | 25.0–29.9 (n = 1,161) | >30 (n = 172) | ||
| Semen analyses | |||||
| Semen volume (ml) | 3.53 ± 0.86 | 3.52 ± 0.85 | 3.46 ± 0.89 | 3.36 ± 0.94 | .059 |
| Sperm concentration (×106) | 35.37 ± 7.78 | 34.77 ± 8.39 | 34.66 ± 8.51 | 34.37 ± 8.34 | .886 |
| Type A motility (A) (%) | 12.61 ± 4.68 | 13.13 ± 5.21 | 11.96 ± 4.35 | 11.67 ± 5.43 | .001 |
| Progressive motility (A + B) (%) | 29.42 ± 7.64 | 30.33 ± 7.62 | 28.44 ± 7.57 | 28.42 ± 8.10 | .001 |
| Total motility (A + B + C) (%) | 38.88 ± 13.93 | 38.20 ± 11.01 | 37.02 ± 12.65 | 36.91 ± 15.11 | .045 |
| pH value | 7.32 ± 0.65 | 7.35 ± 0.71 | 7.33 ± 0.58 | 7.32 ± 0.61 | .832 |
| Sexual function | |||||
| IIEF-5 | 21.39 ± 3.42 | 21.22 ± 3.93 | 20.49 ± 4.01 | 20.47 ± 4.61 | .001 |
| IELT | 4.58 ± 1.24 | 4.45 ± 1.38 | 4.44 ± 1.39 | 4.33 ± 1.48 | .669 |
| Sexual desire | .105 | ||||
| Weak | 4 (10.53) | 157 (8.70) | 108 (9.30) | 18 (10.47) | |
| Moderate | 25 (65.79) | 1,178 (65.34) | 780 (67.18) | 116 (67.44) | |
| Strong | 9 (23.68) | 468 (25.96) | 273 (23.52) | 38 (22.09) | |
Note. Data are shown as mean ± standard deviation or n (%). BMI = body mass index; IIEF-5 = five-item International Index of Erectile Function; IELT = intravaginal ejaculation latency time.