Table 2.

Comparison of variables between case and control groups

	Case group	Control group	p value
Semen volume (ml)	2.3 ± 0.7	3.20 ± 0.60	< 0.05 a
PH	8.02 ± 0.1	8.08 ± 0.10	NS
Concentration × 10⁶	49.4 ± 7.3	62.66± 9.60	< 0.05 a
Motility (%)	44.5 ± 6.3	53.20 ± 8.40	< 0.05 a
Normal morphology (%)	29.4 ± 8.0	39.20 ± 13.2	< 0.05 a
µ-Calpain (ng/ml)	25.28 ± 1.0	26.88 ± 1.30	NS

NS: non-significant;

^a Significant difference between groups