Association of nights and weekends with survival of emergency patients

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K17252
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 58010:Medical management and medical sociology-related
• Research Institution: Okinaka Memorial Institute for Medical Research
• Principal Investigator: Fukuda Tatsuma (財)冲中記念成人病研究所, その他部局等, 研究員 (80820042)
• Project Period (FY): 2021-04-01 – 2023-03-31
• Keywords: 院外心停止 / 働き方改革 / 時間外医療 / タスクシフト

Outline of Final Research Achievements

This study aimed to examine the association of outcomes of emergency patients with time of day and day of week. This observational study analyzed the Japanese government-led nationwide population-based registry data of OHCA patients.
After adjusting for potential confounders, 1-month survival during on-duty hours was significantly higher than that during off-duty hours.
Among pediatric OHCA patients, one-month survival after OHCA remained significantly lower during night than during day/ evening, although disparities in 1-month survival between weekdays and weekends have been eliminated over time.

Free Research Field

救急医学

Academic Significance and Societal Importance of the Research Achievements

わが国では働き方改革が推進され、2024年には時間外労働の上限規制は医師にも適用される予定であるが、これはこれまでに休日・夜間等の時間外の救急医療提供体制の整備を推進してきたわが国の医療計画とは相反するものとなりうる。
休日・夜間等の時間外救急医療と患者転帰の関係を多面的・多角的に分析した本研究は、救命機能を維持した働き方改革実現のスキーム構築のための基盤情報となりうるもので意義は大きい。