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Table 3 Examination of the relationship between seminal plasma cadmium levels and other 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)

Population Parameter n r a P
Group 1: Infertility patients     
  Sperm concentration 109 −0.189 <0.05
  % Normal sperm morphology 109 −0.052 0.588,NS
  % Motile sperm 109 −0.201 <0.036
  Follicle-stimulating hormone 51 0.064 0.655, NS
  Luteinizing hormone 51 −0.204 0.151, NS
  Testosterone 51 −0.106 0.458, NS
  Mannose receptor expression 102 0.142 0.154, NS
  Spontaneous acrosome loss 84 0.182 0.099, NS
  Progesterone-induced acrosome loss 23 −0.325 0.131, NS
  Mannose-induced acrosome loss 67 0.187 0.129, NS
Group 2: AI donors     
  Sperm concentration 9 −0.259 0.240, NS
  % Normal sperm morphology 9 0.250 0.545, NS
  % Motile sperm 13 −0.110 0.621, NS
  Spontaneous acrosome loss 13 0.594 0.031
  Progesterone-induced acrosome loss 14 −0.404 0.131, NS
Group 3: General population volunteers     
  Sperm concentration 35 −0.037 0.833, NS
  % Normal sperm morphology 35 0.101 0.563, NS
  % Motile sperm 35 0.011 0.948, NS
  Spontaneous acrosome loss 9 0.110 0.775
  Progesterone-induced acrosome loss 14 0.117 0.742, NS
  1. ar= Spearman correlation coefficient.