Análisis de la influencia del baremo en la prueba para médico interno residente (MIR) e impacto de su modificación

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Abstract

Introduction: Currently, the academic score accounts for 10% of the final result in the Spanish MIR (Medical Residency Entrance Exam). This study aims to analyze the relationship between academic score and exam performance, and to evaluate the impact of modifying the weight of the academic score to 0%, 25%, or 50%. Methods: Official results from the 2020/2021 and 2021/2022 MIR exams were analyzed. Net scores were assessed in relation to academic scores adjusted for country of origin, and the changes in ranking positions were calculated for scenarios where the academic score weight was set at 0%, 25%, and 50%. Results: A strong correlation was found between net scores and academic performance (0.65 and 0.64 for the 2020–2021 and 2021–2022 MIR exams, respectively), which increased when analyzing only Spanish candidates. Across all academic score ranges, Spanish candidates achieved higher net scores than foreign candidates. Assigning a 0% weight to the academic score led to a median worsening in ranking of 4 positions for Spaniards and 17 positions for foreigners in the 2020–2021 exam (p < 0.001). Conversely, increasing the academic score weight to 50% resulted in a median worsening of 21 positions for Spaniards and an improvement of 97 positions for foreigners (p < 0.001). Similar results were observed for the 2021–2022 cohort. Conclusions: A high academic score is associated with better MIR exam performance, particularly among Spanish candidates. Increasing the weight of the academic score does not benefit Spanish applicants.