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. 2017 Oct-Dec;21(4):306–312. doi: 10.5935/1518-0557.20170052

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.