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Antibodies to spermatozoa. VIII. Correlation of sperm antibody activity with postcoital tests in infertile couples.

A study of the correlation between results of postcoital tests (PCTs) and presence of sperm antibodies in sera of either male or female partners or in the cervical mucus of seminal plasma, was made in 127 infertile couples. The percentage of positive antibody tests increased progressively as PCT results deteriorated from excellent to poor. Thus, the percentage of positive serum tests, by either method used, was 7% in the excellent group as compared to 52% in the poor group. This progressive increase was evident only in the females; the antibody tests in the males did not correlate directly with the PCT results. Nonetheless, even with excellent PCT results, 7% of women and 21% of men showed presence of antibodies. On the other hand, in the group showing poor PCTs, 48% of women had an absence of antibodies.