Journal
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
Volume 82, Issue 5, Pages 1158-1165Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jaad.2019.12.063
Keywords
dermatologic surgery; melanoma; melanoma in situ; number needed to excise; number needed to treat; oncology; pigmented lesions
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Funding
- National Center for Advancing Translational Sciences of the National Institutes of Health [UL1TR002553]
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Objective: To provide a formal statistical comparison of the efficacy of melanoma detection among different clinical settings. Methods: A systematic review and meta-analysis of all relevant observational studies on number needed to treat (NNT) in relation to melanoma was performed in MEDLINE. We performed a random-effects model meta-analysis and reported NNTs with 95% confidence intervals (CIs). The subgroup analysis was related to clinical setting. Results: In all, 29 articles including a total of 398,549 biopsies/excisions were analyzed. The overall NNT was 9.71 (95% CI, 7.72-12.29): 22.62 (95% CI, 12.95-40.10) for primary care, 9.60 (95% CI, 6.97-13.41) for dermatology, and 5.85 (95% CI, 4.24-8.27) for pigmented lesion specialists. Limitations: There is heterogeneity in data reporting and the possibility of missing studies. In addition, the incidence of melanoma varies among clinical settings, which could affect NNT calculations. Conclusion: Pigmented lesion specialists have the lowest NNT, followed by dermatologists, suggesting that involving specialists in the diagnosis and treatment of pigmented skin lesions can likely improve patient outcomes.
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