Rinsho Shinkeigaku (Clinical Neurology)

Original Article

Direct medical costs of Parkinson's disease by Hoehn and Yahr severity in Japan:
An analysis of administrative claims data

Kenji Baba, M.S.1), Ichiro Naoi, M.S.1), Hidetoshi Shibahara, M.S.2), Sachie Inoue, Ph.D., M.B.A.2) and Hiroshi Aino, M.D., Ph.D.1)

1) Sumitomo Pharma Co., Ltd.
2) Crecon Medical Assessment Inc.

To estimate the medical costs related to Parkinson's disease (PD) by Hoehn and Yahr (HY) scale, we conducted a descriptive study by using a large-scale hospital based administrative claims database in Japan. Approximately 20,000 PD patients who had a diagnosis of PD with HY severity between April 2008 and December 2018 were included in the analysis. Estimated PD related outpatient costs, frequency of hospitalization, length of stay, and inpatient costs were increased with HY severity. Our estimates of the PD related medical costs are based on the large-scale claims database, despite limitations such as the reliability of HY severity in the claims data, could be used in future cost-effectiveness studies for treatment of PD.
Full Text of this Article in Japanese PDF (1775K)

(CLINICA NEUROL, 62: 524−531, 2022)
key words: Parkinson's disease, Hoehn and Yahr scale, claims database, medical cost

(Received: 29-Sep-21)