Joshua Fierer, MD
To the Editor: In a case-control study of nosocomial Staphylococcus epidermidis bacteremia, Martin and coworkers (1) found that bacteremic patients were nearly twice as likely to die as controls and that there was about 14% excess mortality attributable to the bacteremia. Because S. epidermidis is a relatively avirulent microorganism (2), these results are surprising, even in a patient population that included many highly vulnerable patients.I would like to suggest an alternative explanation for their findings. Although the cases and controls were matched for many important characteristics, they were not matched for orders for blood cultures. Physicians do not order blood
Fierer J. Staphylococcus epidermidis Bacteremia. Ann Intern Med. ;111:93–94. doi: 10.7326/0003-4819-111-1-93
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Published: Ann Intern Med. 1989;111(1):93-94.
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