• Luke O Hansen, Jeffrey L Greenwald, Tina Budnitz, Eric Howell, Lakshmi Halasyamani, Greg Maynard, Arpana Vidyarthi, Eric A Coleman, and Mark V Williams.
• Department of Medicine, Division of Hospital Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
• J Hosp Med. 2013 Aug 1; 8 (8): 421-7.

BackgroundRehospitalization is a prominent target for healthcare quality improvement and performance-based reimbursement. The generalizability of existing evidence on best practices is unknown.ObjectiveTo determine the effect of Project BOOST (Better Outcomes for Older adults through Safe Transitions) on rehospitalization rates and length of stay.DesignSemicontrolled pre-post study.Setting/ParticipantsVolunteer sample of 11 hospitals varying in geography, size, and academic affiliation.InterventionHospitals implemented Project BOOST-recommended tools supported by an external quality improvement physician mentor.MethodsPre-post changes in readmission rates and length of stay within BOOST units, and between BOOST units and site-designated control units.ResultsThe average rate of 30-day rehospitalization in BOOST units was 14.7% prior to implementation and 12.7% 12 months later (P = 0.010), reflecting an absolute reduction of 2% and a relative reduction of 13.6%. Rehospitalization rates for matched control units were 14.0% in the preintervention period and 14.1% in the postintervention period (P = 0.831). The mean absolute reduction in readmission rates in BOOST units compared to control units was 2.0% (P = 0.054 for signed rank test comparing differences in readmission rate reduction in BOOST units compared to site-matched control units).ConclusionsParticipation in Project BOOST appeared to be associated with a decrease in readmission rates.Copyright © 2013 Society of Hospital Medicine.

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