Objective：In Parkinson's disease and Parkinsonian syndrome (referred to collectively as PD), the progression of functional decline is influenced by complications such as bone fracture or pneumonia. We aimed to assess the efficiency of short-term inpatient rehabilitation therapy for patients with PD in terms of functional recovery and cost-effectiveness.

Methods：We investigated differences in outcomes of inpatient rehabilitation for 84 patients with PD, in relation to reasons for hospitalization. Patients with complications, including orthopedic diseases (n＝15), and disuse syndrome (n＝16) received therapy for 3 hours/day in Kaifukuki postacute convalescent rehabilitation wards (KRW) or 2 hours/day in other facilities. Fifty-three patients without complications and thus not eligible for admission to KWR were provided with short-term inpatient rehabilitation therapy (training for 2 hours/day, 6 days/week for 1 month).

Results：In the patients without complications, the efficiency of FIM (FIM gain/hospital stay) was significantly greater (p＝0.03) and the amount of training and the medical expenses needed to improve the FIM score by 1 point, calculated as total training units (1 unit＝20 minutes of therapy as per the Japanese medical insurance system) divided by FIM gain and total medical cost divided by FIM gain, showed a decreasing trend (p＝0.07, 0.10, respectively) in comparison with that in the patients with complications.

Conclusion：Short-term inpatient rehabilitation for PD patients without complications is beneficial in terms of rehabilitation efficiency and cost-effectiveness, and appears effective at preventing complications and reducing costs. Reconsideration of the medical insurance system may be necessary so that short-term inpatient rehabilitation can be offered in various facilities, including Kaifukuki wards.