Community-acquired and hospital-acquired medication harm among older inpatients and impact of a state-wide medication management intervention.

Background: We previously reported reduction in the rate of hospitalisations with medication harm among older adults with our 'Pharm2Pharm' intervention, a pharmacist-led care transition and care coordination model focused on best practices in medication management. The objectives of the current study are to determine the extent to which medication harm among older inpatients is 'community acquired' versus 'hospital acquired' and to assess the effectiveness of the Pharm2Pharm model with each type.

Methods: After a 3-year baseline, six non-federal general acute care hospitals with 50 or more beds in Hawaii implemented Pharm2Pharm sequentially.

Reductions in Medication-Related Hospitalizations in Older Adults with Medication Management by Hospital and Community Pharmacists: A Quasi-Experimental Study.

Objectives: To evaluate the association between a system of medication management services provided by specially trained hospital and community pharmacists (Pharm2Pharm) and rates and costs of medication-related hospitalization in older adults.

Design: Quasi-experimental interrupted time series design comparing intervention and nonintervention hospitals using a mixed-effects analysis that modeled the intervention as a time-dependent variable.

Setting: Sequential implementation of Pharm2Pharm at six general nonfederal acute care hospitals in Hawaii with more than 50 beds in 2013 and 2014.