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Previous Volume 336:133-136 January 9, 1997 Number 2 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

	Full Text Purchase this article Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited Related Article by Morgan, T. O.

To the Editor: Morgan et al. (Aug. 1 issue)¹ report on age-specific reference ranges for serum prostate-specific antigen (PSA) in black men. Their analysis is based on the distribution of serum PSA levels in a large population of blacks and whites both with and without prostate cancer. I believe there is a flaw in their data for men without prostate cancer (the controls).

Their control PSA data are derived from a group of 3764 men without known prostate cancer, 576 of whom had abnormal digital rectal examinations, serum PSA values higher than 4.0 ng per milliliter (most had elevated PSA . . . [Full Text of this Article]

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