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Abstract Background Weekend admission to the hospital has been found to be associated with higher in-hospital mortality rates, but the cause for this phenomenon remains controversial. US based studies have been limited in their characterization of the weekend patient population, making it difficult to draw conclusions about the implications of this effect. Methods A retrospective cohort study, examining de-identified, patient level data from 2015 to 2017 at US academic medical centers submitting data to the Vizient database, comparing demographic and clinical risk profiles, as well as mortality, cost and length of stay, between weekend and weekday patient populations. Between-group differences in mortality were assessed using the chi-square test for categorical measures and Wilcoxon rank-sum test for continuous measures. Logistic regression models were used to test the multivariate association of weekend admission and other patient-level factors with death, LOS, etc. Results We analyzed 10,365,605 adult inpatient encounters. Within the weekend patient population, 30.6% of patients were categorized as having either a major or extreme risk of mortality on admission, as compared to 23.7% on weekdays (p

Abstract Introduction This patient safety curriculum was developed to address two important needs in contemporary graduate medical education: training frontline providers in key patient safety skills and producing tangible products that demonstrate resident achievement in this area. The curriculum is geared towards second- and third-year internal medicine residents. Methods It employs a mixed-methods approach to teaching patient safety concepts by integrating standardized introductory cases with individualized real-time cases under consideration by the department's peer review committee. This resource consists of an instructional slide set and facilitator guide for the patient safety and peer review course, including standardized cases of medical error. Also included are a practical workflow depicting faculty and resident training, as well as guidance on the necessary collaboration with local peer review leadership. Results Following the training of 14 faculty members and curriculum completion by 60 residents, preliminary resident before-after survey results demonstrate a significant increase in the percentage of residents who report being able to complete a mortality review, feeling comfortable with key components of the curriculum (e.g., teaching the difference between active and latent failures, recognizing the difference between levels of standard of care), and having a high level of comfort with the concept of peer review (either performing it on a colleague's case or having a colleague perform it on one of their own cases). Discussion Integrating residents into ongoing departmental patient safety efforts can provide residency programs with a novel way to teach essential patient safety concepts as well as to meet current competency requirements.