The Impact of Level of Physical Therapist Assistant Involvement on Patient Outcomes Following Stroke.

Objective: This study investigates if higher utilization of physical therapist assistants adversely affects patient outcomes in the acute rehabilitation setting for patients following a cerebrovascular accident (CVA).
Methods: Participants were admitted to 1 of 5 inpatient rehabilitation facilities following a CVA from 2008 to 2010. High physical therapist assistant use was defined as ≥20% of the physical therapist visits being provided by the physical therapist assistant for an episode of care. Multivariable regression techniques examined differences in functional outcome, discharge location, and length of stay between high and low physical therapist assistant use groups. Propensity scoring methods supplemented findings of the regression analyses.
Results: Of the 1561 participants, 496 (32%) had high physical therapist assistant involvement. Baseline participant characteristics such as age, sex, baseline motor function, and comorbidities did not differ between high and low physical therapist assistant use groups. After adjusting for patient characteristics, rehabilitation facility, and year, higher physical therapist assistant use did not adversely affect functional outcome or length of stay. Fewer conclusions can be drawn regarding discharge location, although there was no significant difference in discharge location between groups with high and low physical therapist assistant utilization. Propensity scoring methods supported the findings of the regression analyses.
Conclusions: Higher physical therapist assistant involvement in the rehabilitation of patients following CVA did not adversely affect functional outcome, increase length of stay, or reduce the likelihood of discharge to home from an inpatient rehabilitation facility.
Impact: The results demonstrate the value of the physical therapist assistant in the provision of physical therapy for patients with stroke in the inpatient rehabilitation setting. Higher involvement of the physical therapist assistant may provide cost savings while maintaining patient outcomes for this setting and population.
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