ospital medicine is the fastest growing medical specialty in the United States. 1,2 A major driver of this growth has been empirical evidence suggesting that hospitalists provide inpatient care that is more efficient, less costly, and of equal or higher quality than traditional models of care. 3,4 Currently, hospitalist programs face growing pressure to increase productivity to compensate for declining revenue or to meet operational demands resulting from policy and practice changes, such as limitations on resident work hours, specialty comanagement, and decreased presence of primary care physicians in the hospital. [5][6][7] Increased workloads for nurses and resident physicians have been associated 6,8 with adverse events, leading to mandated workload reductions, but there is little empirical evidence illuminating the association of hospitalist workload and clinical outcomes.Historically, benchmark recommendations for US hospitalist workload range from 10 to 15 patient encounters per day, but these figures lack empirical support. 9 In a recent national survey of hospitalists, 10 40% of respondents reported exceeding what they perceived as a safe workload at least monthly and that increased workload led to delays in care, poor communication between physicians and patients, delivery of unnecessary care, medication errors, and complications of care, including death. Although the correlations between these physician perceptions and patient outcomes are not known, increasing productivity requirements for hospitalists could un-IMPORTANCE Hospitalist physicians face increasing pressure to maximize productivity, which may undermine the efficiency and quality of care.OBJECTIVE To determine the association between hospitalist workload and the efficiency and quality of inpatient care.
DESIGN, SETTING, AND PARTICIPANTSWe conducted a retrospective cohort study of 20 241 admissions of inpatients cared for by a private hospitalist group at a large academic community hospital system between February 1, 2008, and January 31, 2011.EXPOSURES Daily hospitalist workload as measured by relative value units and patient encounters from the hospitalist billing records.
MAIN OUTCOMES AND MEASURESThe main outcomes were length of stay (LOS), cost, rapid response team activation, in-hospital mortality, patient satisfaction, and 30-day readmission rates. Key covariates included hospital occupancy and patient-level characteristics.
RESULTSThe LOS increased as workload increased, particularly at lower hospital occupancy. For hospital occupancies less than 75%, LOS increased from 5.5 to 7.5 days as workload increased. For occupancies of 75% to 85%, LOS increased exponentially above a daily relative value unit of approximately 25 and a census value of approximately 15. At high occupancy (>85%), LOS was J-shaped, with significant increases at higher ranges of workload. After controlling for LOS, cost increased by $111 for each 1-unit increase in relative value unit and $205 for each 1-unit increase in census across the range of values. Changes i...