Table 1. Descriptive statistics and comparison between NORMO and ALTERED patients
  NORMO
n= 132
Mean ± SD
ALTERED
n= 286
Mean ± SD
p value
Age 37.26 ± 6.76 39.50 ± 6.87 0.004
Volume (mL) 2.85 ± 0.95 2.85 ± 1.27 0.357
Concentration (x106/mL) 76.08 ± 36.36 53.41 ± 39.38 0.000
Progressive motility (%) 47.59 ± 10.60 26.72 ± 15.55 0.000
Normal morphology (%) 4.67 ± 1.05 2.77 ± 1.28 0.000
DFI (%) 15.64 ± 7.65 18.41 ± 9.43 0.003

NORMO: Normozoospermic patients. ALTERED: patients with an altered parameter