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Granger CV, Deutsch A, Russell C, Black T, Ottenbacher KJ: Modifications of the FIM instrument under the inpatient rehabilitation facility prospective payment system. Am J Phys Med Rehabil 2007; 86: 883–892.

Objectives:

To describe the modifications made to the FIM instrument when it was incorporated into the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI), and to compare FIM data collected before and after the IRF prospective payment system (IRF-PPS) was implemented in 2002 for patients with stroke.

Design:

Year-by-year comparison of data of Medicare patients with stroke discharged in 1998–2003 from 411 IRFs that submitted data to the Uniform Data System for Medical Rehabilitation for each of those years.

Results:

In the pre-PPS period, admission motor FIM ratings decreased slightly, and discharge motor, admission cognitive, and discharge cognitive ratings remained stable …