Table 6 Unadjusted semen characteristics by region.
Warsaw N = 198 | Kharkiv N = 208 | Greenland N = 201 | Sweden N = 191 | |
|---|---|---|---|---|
Sperm concentration × 106/ml | ||||
mean (SD) | 88 (80) | 75 (61) | 72 (61) | 57 (44) |
median (p5 – p95) | 64 (7–258) | 59 (10–193) | 53 (11–178) | 49 (9–166) |
Total sperm count × 106 | ||||
mean (SD) | 343 (374) | 255 (238) | 245 (241) | 182 (159) |
median (p5 – p95) | 197 (19–1071) | 181 (24–746) | 186 (32–667) | 133 (15–500) |
Volume ml, mean (SD) | 3.8 (1.8) | 3.5 (1.9) | 3.5 (1.7) | 3.3 (1.7) |
A+B motile, % (SD) | 60 (20) | 54 (22) | 55 (19) | 57 (21) |
CASA, motile, % (SD) | 42 (22) | not performed | 50 (21) | 32 (21) |
Normal morphology, % (SD) | 6.7 (3.8) | 7.3 (4.2) | 6.9 (3.7) | 8.2 (4.5) |
Abstinence period a, days, | ||||
mean (SD) | 7.7 (9.5) | 3.9 (2.0) | 3.5 (3.1) | 3.7 (2.6) |
median (p5 – p95) | 4.0 (1.0–30.0) | 3.0 (1.5–7.0) | 3.0 (0.5–7.0) | 3.0 (1.0–8.0) |
Time to analysis, minutes, mean (SD) | 52 (8) | 37 (12) | 35 (18) | 44 (12) |
Season for sperm collection, % | ||||
Spring | 19 | 26 | 32 | 34 |
Summer | 10 | 22 | 54 | 35 |
Fall | 21 | 24 | 14 | 31 |
Winter | 50 | 28 | 0 | 0 |
Fever last three months, % | 9 | 10 | 13 | 3 |
Pain at urination last three months, % | 2 | 19 | 3 | 0 |
Infections, vaccines or surgery last six months, % | 26 | 72 | 12 | 8 |
Medicine or natural medicine use last six months, % | 33 | 68 | 32 | 33 |
Spillage of semen, % | 6 | 17 | 11 | 16 |