An analysis of the impact of housing performance on heat shock-related mortality by municipality using official statistics

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K02382
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 08030:Family and consumer sciences, and culture and living-related
• Research Institution: Akita University
• Principal Investigator: Nishikawa Ryoji 秋田大学, 教育文化学部, 准教授 (00307703)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: ヒートショック / 断熱住宅 / 断熱範囲 / 死亡率 / 冬季死亡増加率 / 気候の寒冷さ / 食・生活習慣 / 統計解析

Outline of Final Research Achievements

Using official statistical data, this study examined the effects of climate and housing factors (year of construction, floor area, window insulation, etc., in accordance with energy conservation standards) on heat shock-related mortality (cerebrovascular disease, heart disease, etc.) on a municipal basis, using Akita Prefecture as an example, through statistical analysis that also included lifestyle and other factors The study also included a statistical analysis of lifestyle and other factors. In particular, for housing factors, the scope of insulation reinforcement (whole house, main living room) and insulation performance of houses effective in reducing heat shock were suggested. Using the annual mortality rate and the increase in winter deaths, we proposed a method to classify the characteristics of HS mortality in a region into nine categories.

Free Research Field

建築環境学・住環境科学

Academic Significance and Societal Importance of the Research Achievements

安全・健康な住宅は高齢社会における生活の基盤である。地域社会の住宅水準と住民の健康（病気）の現状と課題を把握して、断熱住宅の普及促進を進める上で統計データの分析は欠かせない。本研究で示した県内の市町村単位でHS関連死亡率に気象・住宅要因が与える影響の分析法や、都道府県単位で県のHS死亡率の年間と冬季の特徴を表す方法、また、秋田県でHS関連死因を低減するには次世代省エネ基準以降の断熱性能や住宅の全ての窓の複層化が必要という知見は、地域における健康維持増進住宅の普及促進に有用で高齢者対策と居住福祉の向上に寄与すると考えられる。