| Table 2. Correlation between general semen parameters and sexual abstinence period. |
| Semen Parameters |
Regression analysis |
Sexual Abstinence Period Groups |
| Spearman's rank correlation |
95% Confidence Interval |
p |
Total n:2458 |
<2 days n:244 |
2-5 days n:1932 |
>5 days n:282 |
p |
| pH |
r: -0.01 |
-0.05 to 0.02 |
0.52 |
8.0±0.4 |
8.0±0.6 |
8.0±0.5 |
8.0±0.4 |
0.28 |
| Volume (ml) |
r: 0.10 |
0.08 to 0.16 |
0.0004 |
2.7±1.5 |
2.3±1.2a,b |
2.7±1.6a |
2.8±1.7b |
a0.0001 b0.0004 |
| Concentration (mlx106) |
r: 0.12 |
0.088 to 0.16 |
<0.0001 |
71.9±61.1 |
60.7±50.0a,b |
70.4±61.1a,c |
92.1±65.8b,c |
a0.02 b,c<0.0001 |
| Progressive motility (rapid + slow progression) (%) |
r: -0.10 |
-0.10 to -0.02 |
0.0007 |
56.1±16.7 |
58.3±16.2a,b |
56.1±16.9a,c |
53.8±16.1b,c |
a0.03 b0.0004 c0.01 |
| Total motility (%) |
r: -0.10 |
-0.13 to -0.05 |
<0.0001 |
63.0±16.2 |
65.5±15.6a,b |
63.1±16.2a,c |
59.7±16.2b,c |
a0.01 b<0.0001 c0.0002 |
| Normal sperm forms (%) |
r: 0.03 |
-0.008 to 0.07 |
0.12 |
0.8±1.4 |
0.7±1.0 |
0.9±1.4 |
1.0±1.8 |
0.77 |
| Leukocytes (x106/ml) |
r: 0.10 |
0.03 to 0.11 |
0.0001 |
0.4±0.9 |
0.3±0.6a,b |
0.4±0.9a |
0.5±1.2b |
a0.002, b0.0002 |
| Vitality (%) |
r: -0.10 |
-0.13 to -0.05 |
0.006 |
64.5±14.9 |
66.9±14.0a,b |
65.0±15.0a,c |
61.3±14.8b,c |
a0.03 b,c<0.0001 |
| Values within rows with the same superscript letter were significantly different. |