United States Medical Licensing Exam Step I Score as a Predictor of Neurosurgical Career Beyond Residency.

Abstract

United States Medical Licensing Exam (USMLE) Step I score is cited as one of the most important factors when for applying to neurosurgery residencies. No studies have documented a correlation between USMLE Step I score and metrics of neurosurgical career trajectory beyond residency. To determine whether USMLE Step I exam scores are predictive of neurosurgical career beyond residency, as defined by American Board of Neurological Surgery (ABNS) certification status, practice type, academic rank, and research productivity. A database of neurosurgery residency applicants who matched into neurosurgery from 1997 to 2007 was utilized that included USMLE Step I score. Online databases were used to determine h-index, National Institutes of Health (NIH) grant funding, academic rank, practice type, and ABNS certification status of each applicant. Linear regression and nonparametric testing determined associations between USMLE Step I scores and these variables. USMLE Step I scores were higher for neurosurgeons in academic positions (237) when compared to community practice (234) and non-neurosurgeons (233, P<.01). USMLE Step I score was not different between neurosurgeons of different academic rank (P=.21) or ABNS certification status (P=.78). USMLE Step I score was not correlated with h-index for academic neurosurgeons (R2=0.002, P=.36). USMLE Step I score has little utility in predicting the future careers of neurosurgery resident applicants. A career in academic neurosurgery is associated with a slightly higher USMLE Step I score. However, USMLE Step I score does not predict academic rank or productivity (h-index or NIH funding) nor does USMLE Step I score predict ABNS certification status.