Microscopic Varicocelectomy Significantly Decreases the Sperm DNA Fragmentation Index in Patients with Infertility

Table 2

Preoperative and postoperative sperm parameters and DNA fragmentation index (DFI).

Variable	Preoperative	Postoperative	𝑃^∗
Volume (mL)	2.7±1.3	2.9±1.5	N.S.
Count (mil/mL)	34.6±23.8	41.4±15.9	<0.05
Progressive motility; (𝑎+𝑏) (%)	19.9±7.1	39.3±6.4	<0.05
Sperm DFI	42.6%	20.5%	<0.001

∗Wilcoxon signed-rank test.