Health care providers often “tend to take reported allergies at face value,” said coauthor Anne Fulton, suggesting that primary care practices can help by considering skin testing for those patients who carry a label of penicillin allergy, but don’t have a documented confirmatory test. The cost for a commonly used skin test for penicillin allergy runs about $200, said Ms. Fulton, a doctoral candidate at the University of Maryland, Baltimore, in an interview.
When conducting the meta-analysis, Dr. Mattingly and his coauthors converted all figures to 2017 U.S. dollars, using Consumer Price Index figures to adjust for inflation. This yields conservative estimates for cost, as drug and health care prices have far outstripped the general rate of inflation during the period in which the studies occurred, Ms. Fulton acknowledged.
The investigators highlighted the need for ongoing study in this area. “To our knowledge, there are no evaluations of long-term outpatient outcomes related to the effects of PCN allergy and the potential impact of delabeling patients who do not have a true allergy,” they wrote.
Ms. Fulton agreed, noting that the studies covered in the meta-analysis were primarily focused on short-term outcomes, though there are many potential long-term benefits to delabeling patients who are not truly penicillin allergic.
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