Table 1.
Baseline summary statistics of idiopathic (at least one abnormal sperm parameter) and unexplained (normozoospermic) male infertility subjects.
| Parameters | Idiopathic Male Infertility | n | Unexplained Male Infertility | n |
|---|---|---|---|---|
| Age (years) | 36.4 ± 6.9 (36.0; 31.0–41.0) |
119 | 34.0 ± 4.8 (34.0; 31.0–36.0) |
29 |
| BMI (Kg/m2) | 29.6 ± 4.6 (29.4; 26.7–32.9) |
119 | 29.7 ± 4.5 (28.7; 26.3–31.0) |
29 |
| Right testis size (mL) | 14.2 ± 4.9 (13.1; 10.5–7.0) |
87 | 16.1 ± 4.6 (16.5; 13.5–19.1) |
24 |
| Left testis size (mL) | 13.8 ± 4.5 (14.0; 11.0–6.5) |
87 | 15.3 ± 5.3 (13.9; 12.0–18.1) |
24 |
| Wife’s age (years) | 31.6 ± 6.6 (31.0; 27.0–37.8) |
119 | 27.9 ± 3.6 (27.0; 25.8–30.3) |
29 |
| Semen volume (mL) | 3.1 ± 1.6 (3.0; 1.6–4.0) |
119 | 3.0 ± 1.2 (3.0; 2.0–4.0) |
29 |
| Sperm concentration (106/mL) | 16.4 ± 17. 1 (11.0; 3.6–24.8) |
119 | 46.2 ± 34.3 (36.0; 24.3–53.3) |
29 |
| Sperm viability (%) | 48.6 ± 17.7 (50.0; 36.0–60.0) |
76 | N/A | |
| Total motility (%) | 30.2 ± 16.3 (30.0; 16.3–40.0) |
119 | 52.5 ± 8.3 (50.0; 45.0–60.0) |
29 |
| Progressive motility (%) | 2.3 ± 5.5 (0.0; 0.0–0.0) |
119 | 10.9 ± 9.9 (10; 0.0–20.0) |
29 |
| Normal morphology (%) | 2.2 ± 1.7 (2.0; 1.0–3.0) |
119 | 5.7 ± 2.5 (4.0; 4.0–7.0) |
29 |
| SDF (%) | 43.5 ± 22.8 (42.0; 25.0–60.0) |
83 | 28.2 ± 17.5 (21.0; 14.5–47.3) |
29 |
| ORP (mV/106 sperm/mL) | 12.4 ± 16.8 (5.5; 2.6–13.4) |
119 | 1.6 ± 1.1 (1.3; 0.8–2.3) |
29 |
All the values are presented as mean ± SD (median; interquartile range). BMI: body mass index, SDF: sperm DNA fragmentation, ORP: oxidation-reduction potential.