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Table 3 The multivariate regression analysis of the variables correlated with sperm DFI in Spearman correlation (n=298)

From: Analysis of human sperm DNA fragmentation index (DFI) related factors: a report of 1010 subfertile men in China

Variables Odds Ratio 95% CI P value
Age 0.865 0.785-0.954 0.004
Abstinence time 0.926 0.719-1.193 0.551
Semen volume 0.548 0.390-0.771 0.001
Sperm concentration 0.978 0.962-0.994 0.008
Progressive motility 1.173 1.041-1.323 0.009
Sperm motility 0.985 0.907-1.069 0.713
Normal sperm morphology 0.716 0.487-1.051 0.088
TNPMS 1.307 1.012-1.687 0.040
Abnormal head 0.996 0.947-1.048 0.876
Intact acrosome 1.082 1.006-1.163 0.033
Acrosomal enzyme activity 0.996 0.975-1.019 0.750
Seminal plasma zinc 1.229 0.705-2.142 0.466
Serum LH 0.976 0.768-1.239 0.839
Serum FSH 1.086 0.888-1.328 0.422
Seminal plasma TG 1.677 0.046-60.819 0.778
Seminal plasma TC 0.807 0.224-2.913 0.744
Seminal plasma FSH 0.455 0.075-2.752 0.391
Seminal plasma estradiol 0.987 0.970-1.003 0.111
  1. TNPMS Total normal-progressively motile spermatozoa count. Age, semen volume, sperm concentration, progressive motility, TNPMS and intact acrosome were independently correlated with sperm DFI