Application Factors Associated With Clinical Performance During Pediatric Internship

Our goal was to identify aspects of residency applications predictive of subsequent performance during pediatric internship.

We conducted a retrospective cohort study of graduates of US medical schools who began pediatric internship in a large pediatric residency program in the summers of 2013 to 2017. The primary outcome was the weighted average of subjects' Accreditation Council for Graduate Medical Education pediatric Milestone scores at the end of pediatric internship. To determine factors independently associated with performance, we conducted multivariate linear mixed-effects models controlling for match year and Milestone grading committee as random effects and the following application factors as fixed effects: letter of recommendation strength, clerkship grades, medical school reputation, master's or PhD degrees, gender, US Medical Licensing Examination Step 1 score, Alpha Omega Alpha membership, private medical school, and interview score.

Our study population included 195 interns. In multivariate analyses, the aspects of applications significantly associated with composite Milestone scores at the end of internship were letter of recommendation strength (estimate 0.09, 95% confidence intervals [CI]: 0.04, 0.15), numbers of clerkship honors (est. 0.05, 95% CI: 0.01-0.09), medical school ranking (est. 0.04, 95% CI: 0.08-0.01), having a master's degree (est. 0.19, 95% CI: 0.03-0.36), and not having a PhD (est. 0.14, 95% CI: 0.02-0.26). Overall, the final model explained 18% of the variance in milestone scoring.

Letter of recommendation strength, clerkship grades, medical school ranking, and having obtained a Master's degree were significantly associated with higher clinical performance during pediatric internship.