Factors Associated with Attrition and Performance Throughout Surgical Training: A Systematic Review and Meta-Analysis

Carla Hope (Lead / Corresponding author), John-Joe Reilly, Gareth Griffiths, Jon Lund, David Humes

    Research output: Contribution to journalReview articlepeer-review

    15 Citations (Scopus)
    116 Downloads (Pure)


    Background: Attrition within surgical training is a challenge. In the USA, attrition rates are as high as 20-26%. The factors predicting attrition are not well known. The aim of this systematic review is to identify factors that influence attrition or performance during surgical training.

    Method: The review was performed in line with PRISMA guidelines and registered with the Open Science Framework (OSF). Medline, EMBASE, PubMed and the Cochrane Central Register of Controlled Trials were searched for articles. Risk of bias was assessed using the Newcastle-Ottawa scale. Pooled estimates were calculated using random effects meta-analyses in STATA version 15 (Stata Corp Ltd). A sensitivity analysis was performed including only multi-institutional studies.

    Results: The searches identified 3486 articles, of which 31 were included, comprising 17,407 residents. Fifteen studies were based on multi-institutional data and 16 on single-institutional data. Twenty-nine of the studies are based on US residents. The pooled estimate for overall attrition was 17% (95% CI 14-20%). Women had a significantly higher pooled attrition than men (24% vs 16%, p < 0.001). Some studies reported Hispanic residents had a higher attrition rate than non-Hispanic residents. There was no increased risk of attrition with age, marital or parental status. Factors reported to affect performance were non-white ethnicity and faculty assessment of clinical performance. Childrearing was not associated with performance.

    Conclusion: Female gender is associated with higher attrition in general surgical residency. Longitudinal studies of contemporary surgical cohorts are needed to investigate the complex multi-factorial reasons for failing to complete surgical residency.

    Original languageEnglish
    Pages (from-to)429-442
    Number of pages14
    JournalWorld Journal of Surgery
    Early online date26 Oct 2020
    Publication statusPublished - Feb 2021

    ASJC Scopus subject areas

    • Surgery


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