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Table 4 Examination of the relationship between clinical outcome and semen parameters.

From: Cadmium Concentrations in Blood and Seminal Plasma: Correlations with Sperm Number and Motility in Three Male Populations (Infertility Patients, Artificial Insemination Donors, and Unselected Volunteers)

Clinical outcome Parameter n r a P
Group 1: fertilization by standard dose-compensated IVF inseminationsb     
  Sperm concentration 96 0.161 0.115, NS
  % Normal sperm morphology 96 0.127 0.128, NS
  % Motile sperm 96 0.320 < 0.0015
Group 2: pregnancy by AID     
  Sperm concentration 9 0.500 0.297, NS
  % Normal sperm morphology 9 −0.154 0.783, NS
  % Motile sperm 13 0.794 < 0.05
Group 3: Pregnancy by coitus     
  Sperm concentration 22 0.2117 0.339, NS
  % Normal sperm morphology 22 −0.023 0.916, NS
  % Motile sperm 22 0.035 0.872, NS
  1. ar= Spearman correlation coefficient.
  2. bData derived from Benoff et al. (58).