Table 2 Descriptive characteristics of participants’ semen parameters
From: Decline of semen quality over the last 30 years in Uruguay
| Volume (ml) | Sperm concentration (106/ml) | Vitality (%) | Morphology (%) | Motility a (%) | Motility b (%) | a + b (%) | |
|---|---|---|---|---|---|---|---|
| N | 317 | 317 | 209 | 313 | 317 | 317 | 316 |
| Mean ± SD | 3.5 ± 1.6 | 64.6 ± 40.9 | 85.4 ± 12.4 | 13.8 ± 11.6 | 28.9. ± 14.4 | 31.5 ± 11.9 | 60.2 ± 13.6 |
| Median | 3.2 | 58 | 90 | 11 | 27 | 32 | 62 |
| 25th centile | 2.3 | 33.9 | 77.5 | 8 | 19 | 21 | 52 |
| 75th centile | 4.5 | 85.5 | 95 | 15.5 | 38 | 41 | 69 |