Resident-faculty overnight discrepancy rates as a function of number of consecutive nights during a week of night float

In 2018, the ACGME (Accreditation Council for Graduate Medical Education) made a change to the maximum permissible number of consecutive nights a resident trainee can be on "night float,"from six to seven nights. To our knowledge, although investigators have studied overall discrepancy rates and discrepancy rates as a function of shift length or perceived workload of a particular shift, no study has been performed to evaluate resident-faculty discrepancy rates as a quality/performance proxy, to see whether resident performance declines as a function of the number of consecutive nights. Our hypothesis is that we would observe a progressive increase in significant overnight resident - attending discrepancies over the 7 days' time. A total of 8,488 reports were extracted between 4/26/2019 to 8/22/2019 retrospectively. Data was obtained from the voice dictation system report server. Exported query was saved as a.csv file format and analyzed using Python packages. A "discrepancy checker"was created to search all finalized reports for the departmental standard heading of "Final Attending Report,"used to specify any significant changes from the preliminary interpretation. Model estimates varied on different days however there were no trends or patterns to indicate a deterioration in resident performance throughout the week. There were comparable probabilities throughout the week, with 2.17% on Monday, 2.35% on Thursday and 2.05% on Friday. Our results reveal no convincing trend in terms of overnight report discrepancies between the preliminary report generated by the night float resident and the final report issued by a faculty the following morning. These results are in support of the ACGME's recent change in the permissible number of consecutive nights on night float. We did not prove our hypothesis that resident performance on-call in the domain of report accuracy would diminish over seven consecutive nights while on the night float rotation. Our results found that performance remained fairly uniform over the course of the week.