Table 2. Initial semen characteristics of subjects included in study
	Study group	Validation group	p value*
Sperm concentration (million/mL)
Mean ± SD	39.58±26.24	60.86±78.80	0.259
Min-Max	0.3 – 100.0	11.3-298.0
Progressive total number (million)
Mean ± SD	35.69±29.83	84.22±132.99	0.120
Min-Max	0.1-106.0	1.6-596.0
Total motility (%)
Mean ± SD	60.90±11.75	63.70±19.71	0.589
Min-Max	30.0-74.0	30.0-95.0
Progressive motility (%)
Mean ± SD	42.74±15.26	42.10±25.12	0.828
Min-Max	15.0-67.0	0.0-90.0
Non-progressive motility (%)
Mean ± SD	18.40±9.52	21.60±8.28	0.264
Min-Max	1.0-36.0	5.0-40.0
Non-mobile (%)
Mean ± SD	35.20±14.05	36.30±19.71	0.840
Min-Max	0.0-70.0	5.0-70.0
SD: Standard deviation Min-Max: Minimum and maximum value * Independent T-test