Resident attrition creates a profound burden on trainees and residency programs. This study aims to analyze trends in resident attrition in neurological surgery.
This study followed a cohort of 1275 residents who started neurosurgical residency from 2005 to 2010. Data obtained from the American Association of Neurological Surgeons (AANS) included residents who matched in neurosurgery during this time. Residents who did not finish their residency training at the program in which they started were placed into the attrition group. Residents in the attrition group were characterized by one of five outcomes: transferred neurosurgery programs; transferred to a different specialty; left clinical medicine; deceased; or unknown. A thorough internet search was conducted for residents who did not complete their training at their first neurosurgical program. Variables leading to attrition were also analyzed, including age, sex, presence of advanced degree (Ph.D.), postgraduate year (PGY), and geographical region of program.
Residents starting neurosurgical residency from 2005 to 2010 had an overall attrition rate of 10.98%. There was no statistically significant difference in attrition rates among the years (p = 0.337). The outcomes for residents in the attrition group were found to be as follows: 33.61% transferred neurosurgical programs, 56.30% transferred to a different medical specialty, 8.40% left clinical medicine, and 1.68% were deceased. It was observed that women had a higher attrition rate (18.50%) than men (10.35%). Most attrition (65.07%) occurred during PGY 1 or 2. The attrition group was also observed to be significantly older at the beginning of residency training, with a mean of 31.69 years of age compared to 29.31 in the nonattrition group (p < 0.001). No significant difference was observed in the attrition rates for residents with a Ph.D. (9.86%) compared to those without a Ph.D. (p = 0.472).
A majority of residents in the attrition group pursued training in different medical specialties, most commonly neurology, radiology, and anesthesiology. Factors associated with an increased rate of attrition were older age at the beginning of residency, female sex, and junior resident (PGY-1 to PGY-2). Resident attrition remains a significant problem within neurosurgical training, and future studies should focus on targeted interventions to identify individuals at risk to help them succeed in their medical careers.
ABBREVIATIONSACGME = Accreditation Council for Graduate Medical Education; PGY = postgraduate year; ROC = receiver operating characteristic.
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