Comparison of Serum Inhibin B and Follicle-Stimulating Hormone (FSH) Level between Normal and Infertile Men in Yaoundé
Table 1
Semen characteristics of the study population. Data are reported as the median (5th–95th percentiles). Comparison between the reference group and the case group was performed using a Mann–Whitney U test.
Characteristics of the population
Overall population
Reference group
Case group
Normal values
Age (years)
37 (26–50)
37.6 (27–49.6)
36.5 (23.8–48.8)
NA
0.385
Number of children
1 (0–4)
1 (0–4)
1 (0–5)
NA
0.471
Abstinence (days)
3 (2–6)
3 (2–6)
3 (3–7)
3–5 days
0.441
Semen volume (mL)
2.92 (0.96–5.5)
2.95 (0.72–5.6)
2.8 (1.2–4.46)
≥2 mL
0.923
pH
8.31 (7.5–9)
8.32 (7.6–9)
8.3 (7.5–9)
≥7,2
0.594
Viscosity
1 (0–3)
1 (0–3)
1 (0–3)
0
0.431
Sperm concentration (million/mL)
14.8 (0.2–70.2)
10.8 (0.03–54.6)
39.6 (2.1–78.8)
≥20 × 106/l
<0.0001
Total sperm count (million/ejaculate)
33 (0–194.08)
12.42 (0–109.1)
122.12 (14.83–300.28)
≥40 × 106
<0.0001
Progressive motility (%)
43.2 (2–76)
35.3 (0–72.6)
64 (45.6–80.6)
≥50%
<0.0001
Vitality (%)
53 (10.8–85.2)
45.8 (9.4–81.4)
72 (56.4–86.6)
≥50%
<0.0001
Normal forms (%)
85 (67–94)
84 (65.8–94)
87 (74.8–92.6)
≥85%
0.043
was considered to be statistically significant. The significant values are and .
