標準化レセプト出現比（SCR）を用いた医療サービス提供量の新指標構築の試み

抄録

Japan's new Community Health Care Vision, released in December 2024, aims to address healthcare delivery challenges comprehensively through 2040, encompassing inpatient, outpatient, home-based care, and long-term care coordination. However, this expanded scope raises concerns about the increasing complexity of accurately assessing regional healthcare systems. To aid in understanding this current situation, this study attempted to develop a novel metric for describing and analyzing inpatient and home-based service provision in secondary healthcare areas using the Standardized Claim Ratio (SCR) and principal component analysis (PCA). The results organized patterns of interrelationships and regional disparities indicated by SCRs for various services. Two principal components were extracted as key integrated axes: the first representing the direction of healthcare provision, and the second indicating the overall volume of inpatient care. Furthermore, secondary healthcare areas were categorized based on these new metrics, and their associations with structural elements of regional healthcare systems and healthcare outcomes were exploratorily examined. The approach proposed in this study is suggested to be a potential tool for comprehensively capturing and structurally describing/analyzing complex healthcare delivery situations.