RICHARD A. DAVIDSON, M.D., M.P.H.
To the editor: Lally and Jimenez (1) suggest that impotence may be an early presenting symptom in progressive systemic sclerosis. Unfortunately their evidence for this conclusion is weak.
This study was a retrospective evaluation of the clinical records of all the patients in their university setting with the diagnosis of progressive systemic sclerosis. We are told that five patients were identified who had presented with impotence. We are not told the total number of patients with progressive systemic sclerosis. As impotence may occur in as many as 6% to 10% of a medical outpatient population (2), the denominator should be
DAVIDSON RA. Impotence in Progressive Systemic Sclerosis. Ann Intern Med. ;96:125–126. doi: 10.7326/0003-4819-96-1-125_2
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Published: Ann Intern Med. 1982;96(1):125-126.
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