Groups % of Sperm DNA damage % of Sperm chromatin abnormalities % of Apoptotic Sperm Cells
  r p r p r p
Non-smoker 0.025 NS 0.050 NS -0.666 NS
Tobacco smoker 0.021 NS 0.084 NS -0.1098 NS
Cannabis smoker 0.9980 <0.0001 0.9955 <0.0001 0.9928 <0.0001
NS-Not Significant; r-spearman’s rank correlation coefficient
Table 2: Comparison of sperm DNA integrity among three groups of patients.