Table 3.
Semen parameters in men with normozoospermia and abnormal semen parameters according to the WHO manual from 1999 and 2010
| Parameter | Normozoospermia | Abnormal semen parameters | |||
|---|---|---|---|---|---|
| WHO 1999 n = 290 (50.8%) | WHO 2010 n = 362 (63.4%) | WHO 1999 n = 217 (38.0%) | WHO 2010 n = 145 (25.4%) | ||
| pH | Mean ±SD | 7.5 ±0.2 | 7.5 ±0.2 | 7.4 ±0.3 | 7.4 ±0.3 |
| Median | 7.4 | 7.4 | 7.4 | 7.4 | |
| 5-95 percentile | 7.2-7.9 | 7.0-7.8 | 7.0-7.9 | 7.1-8.0 | |
| Semen volume (ml) | Mean ±SD | 3.9 ±1.6 | 3.9 ±1.7 | 3.2 ±1.7 | 2.9 ±1.4 |
| Median | 3.5 | 3.5 | 3.0 | 2.5 | |
| 5-95 percentile | 2.0-7.0 | 2.0-7.0 | 1.0-7.0 | 2.0-5.5 | |
| Sperm concentration (x 106/ml) | Mean ±SD | 48.4 ±34.0 | 46.3 ±33.5 | 23.8 ±25.4 | 16.8 ±19.1 |
| Median | 38.5 | 37.0 | 15.5 | 9.5b | |
| 5-95 percentile | 16-108 | 14-106 | 1.5-85.0 | 0.5-58.0 | |
| Total sperm number (x 106/ejaculate) | Mean ±SD | 174.3 ±120.8 | 165.6 ±118.1 | 72.3 ±83.5 | 43.4 ±54.4 |
| Median | 140.0 | 130 .0 | 40 .0 | 28.0b | |
| 5-95 percentile | 48-400 | 45.5-390 | 2.5-236.5 | 0.75-164.5 | |
| Progressive motility (a+b) (%) | Mean ±SD | 58.7 ±6.1 | 55.6 ±8.9 | 37.4 ±17.3 | 34.7 ±19.9 |
| Median | 60.0 | 55.0a | 40 | 35 | |
| 5-95 percentile | 50-70 | 40-70 | 0.0-60 | 0.0-60 | |
| Motile sperm concentration (x 106/ml) | Mean ±SD | 28.6 ±20.3 | 26.2 ±19.8 | 9.6 ±11.9 | 6.0 ±8.8 |
| Median | 22.0 | 20.4a | 5.3 | 3.2b | |
| 5-95 percentile | 8.8-69.0 | 6.3-65.0 | 0.0-34.2 | 0.0-24.6 | |
| Total motile sperm count (x 106/ejaculate) | Mean ±SD | 103.0 ±72.7 | 93.5 ±70.2 | 27.3 ±33.4 | 13.6 ±15.9 |
| Median | 79.9 | 72.0a | 16.5 | 9.8b | |
| 5-95 percentile | 28.8-240.0 | 24.0-231.0 | 0.0-94.5 | 0.0-49.4 | |
a
p <0.001 vs. normozoospermia according to WHO 1999
b
p <0.001 vs. abnormal semen parameters according to WHO 1999 (U Mann-Whitney test)