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Fresh semen analysis of the study subjects
| Characteristics | Median (95% CI) |
|---|---|
| Age (year) | 37.0 (35.7–39.7) |
| Volume (ml) | 3.0 (2.7–3.6) |
| Sperm concentration (106 ml−1) | 27.7 (29.7–48.3) |
| Total motility (%) | 45.5 (41.5–49.4) |
| Progressive motility (%) | 40.3 (35.6–43.5) |
| Nonprogressive motility (%) | 5.2 (4.6–7.2) |
| Sperm with normal morphology (%) | 3.0 (2.5–3.7) |
| DNA fragmentation (%) | 19.0 (17.9–24.3) |
CI: confidence interval
