Table 2. Comparison of standard semen parameters in the two study groups.

Sperm parameter	LFGa	HFGa
Sperm volume (mL)	2.37±0.51	3.03±0.29
Sperm concentration (106/mL)*	37.57±13.16	7.32±3.59
Sperm motility (%)	54.17±7.90	43.13±3.26
Morphologically normal SPZ (%)	29.50±4.50	38.14±7.00

LFG: low fragmentation group, HFG: high fragmentation group, SPZ: spermatozoom.

^aMean DNA fragmentation index±standard deviation in LFG and in HFG were compared using a Mann-Whitney test. ^*p<0.05.