Brain Neurorehabil.  2019 Sep;12(2):e19. 10.12786/bn.2019.12.e19.

Does the Korean Rehabilitation Patient Grouping (KRPG) for Acquired Brain Injury and Related Functional Status Reflect the Medical Expenses in Rehabilitation Hospitals?

Affiliations
  • 1TBI Rehabilitation Center, National Traffic Injury Rehabilitation Hospital, Yangpyeong, Korea. taewookimmd@gmail.com
  • 2Department of Rehabilitation Medicine, School of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
  • 3Department of Medicine, The Graduate School of Yonsei University, Seoul, Korea.

Abstract

This study identified the explanatory power of the Korean rehabilitation patient group (KRPG) v1.1 for acquired brain injury (ABI) on medical expenses in the rehabilitation hospitals and the correlation of functional outcomes with the expenses. Here, the design is a retrospective analysis from the claim data of the designated rehabilitation hospitals. Data including KRPG information with functional status and medical expenses were collected from 1 January and 31 August 2018. Reduction of variance (R2) was statistically analyzed for the explanation power of the KRPG. Association between functional status and the medical expenses was carried out using the Spearman's rank order correlation (rho). From the claim data of 365 patients with ABI, the KRPG v1.1 explained 8.6% of variance for the total medical expenses and also explained 9.8% of variance for the rehabilitation therapy costs. Cognitive function and spasticity showed very weak correlation with the total medical expenses (rho = −0.17 and −0.14, respectively). Motor power and performance of activities of daily living were associated weakly (rho = −0.27 and −0.30, respectively). The KRPG and related functional status in ABI reflects the total medical expenses and rehabilitation therapy costs insufficiently in the designated rehabilitation hospitals. Thus, the current KRPG algorithm and variables for ABI may need to be ameliorated in the future.

Keyword

Diagnosis-Related Groups; Fee-for-Service Plans; Neurological Rehabilitation; Brain Diseases
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