A Critical Method of Evaluating Tests for Male Infertility
1983
AbstractConsiderable uncertainty surrounds the selection of test values that separate infertile from fertile men in the evaluation of male infertility. We herein describe an objective method of determining these values, referred to as threshold values, for different infertility tests. Using test results from fertile men threshold values were chosen such that 96 per cent of the semen samples from the fertile men were scored as fertile. These threshold values then were used to evaluate 100 semen samples from 74 men presenting for evaluation of infertility.Using this method we constructed infertility profiles on each of the 100 semen samples presented for infertility evaluation and found that the zona pellucida-free hamster egg penetration test (a measure of a spermatozoon’s ability to undergo capacitation and penetrate an egg) identified 66 per cent of these samples as infertile, while multiple exposure photomicrography (a quantitative measure of sperm motility) identified 54 per cent of these samples as in...
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