Table 3.
Sperm kinematics in men across abstinence time.
| Sperm kinematics | Total | Short AT (n=141) | Recommended AT (n=2639) | Long AT (n=272) | Pa | Pb | Pc |
|---|---|---|---|---|---|---|---|
| VCL (μm/sec), median (IQR) | 29.7 (19.8-41.0) | 31.5 (20.3-44.2) | 30.1 (20.1-41.4) | 26.5 (16.8-36.5) | <0.001 | 0.45 | <0.001 |
| VSL (μm/sec), median (IQR) | 12.4 (7.6-17.6) | 12.6 (7.6-17.8) | 12.5 (7.7-17.8) | 10.5 (6.1-15.6) | <0.001 | 0.85 | <0.001 |
| VAP (μm/sec), median (IQR) | 15.9 (10.0-22.2) | 16.7 (10.3-22.9) | 16.2 (10.3-22.5) | 13.6 (8.4-19.8) | <0.001 | 0.89 | <0.001 |
| BCF (Hz), median (IQR) | 7.6 (4.6-10.8) | 7.9 (4.6-10.6) | 7.7 (4.7-10.9) | 6.6 (3.8-9.7) | 0.001 | 0.96 | <0.001 |
| ALH (μm/sec), median (IQR) | 2.2 (2.0-2.4) | 2.2 (1.9-2.4) | 2.2 (2.0-2.4) | 2.3 (1.9-2.4) | 0.04 | 0.01 | 0.71 |
| MAD (degrees), median (IQR) | 13.1 (9.9-16.1) | 13.3 (9.9-15.8) | 13.2 (10.0-16.3) | 12.1 (8.8-15.2) | 0.001 | 0.77 | <0.001 |
| LIN, median (IQR) | 38.5 (31.6-43.6) | 36.8 (29.3-41.4) | 38.5 (31.8-43.7) | 38.9 (30.4-43.3) | 0.04 | 0.01 | 0.59 |
| WOB, median (IQR) | 50.6 (44.6-54.8) | 49.0 (43.0-53.1) | 50.6 (44.8-54.9) | 51.0 (43.8-54.7) | 0.04 | 0.01 | 0.70 |
| STR, median (IQR) | 74.1 (61.5-79.1) | 71.4 (58.7-77.7) | 74.1 (61.6-79.1) | 75.3 (60.7-79.2) | 0.03 | 0.01 | 0.68 |
AT, abstinence time; VCL, curvilinear velocity; VSL, straight-line velocity; VAP, average path velocity; BCF, frequency of beat cross; ALH, mean amplitude of lateral head displacement; MAD, mean angular displacement; LIN, linearity coefficient; WOB, wobble coefficient; STR, straightness coefficient.
Pa : short EA vs Recommended EA vs Long EA; Pb : short EA vs Recommended EA; Pc : Recommended EA vs Long EA.