Table 3.
Distribution of outcome variables for all HMS study sites.
| Outcome | No. | Mean ± SD | Median (range) |
|---|---|---|---|
| Sperm concentration (millions/mL) | 225 | 114.2 ± 90.1 | 90.5 (2.4–709.7) |
| Sperm count (millions/sample) | 225 | 362 ± 311 | 265 (5–1,845) |
| Percent normal morphology | 228 | 14.1 ± 5.8 | 13.3 (2.0–36.0) |
| Percent abnormal morphology | 228 | 85.9 ± 5.8 | 86.8 (64.0–98.0) |
| Percent abnormal head | 228 | 78.6 ± 7.4 | 79.3 (56.0–97.0) |
| Percent abnormal midsection | 228 | 22.7 ± 8.9 | 21.0 (7.0–53.0) |
| Percent abnormal tail | 228 | 22.2 ± 14.3 | 18.3 (2.0–65.0) |
| Percent abnormal cytoplasmic drop | 228 | 1.6 ± 1.5 | 1.0 (0.0–9.0) |
| Percent CMA | 223 | 60 ± 20 | 60 (20–90) |
| Percent DFI | 190 | 20 ± 10 | 20 (0–70) |