Observational studyBMJ open2022
Impact of the hospitalist system on inpatient mortality and length of hospital stay in a teaching hospital in Japan: a retrospective observational study.
Observational study in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 13 citations in OpenAlex.
- Adapting the Hospitalist Work Style to Japan's Work Style Reform: A Qualitative Study from the Perspectives of Japan-Trained Hospitalists in the United States.JMA journal · 2026Article
- Bridging Dementia Care in Japan: The Emerging Role of General Medicine Physicians.Journal of clinical medicine · 2025Review
- The Evaluation of Hospitalist Care for Patients with Aspiration Pneumonia Using Risk-adjusted Performance Indicators Developed from a Nationwide Inpatient Database.Internal medicine (Tokyo, Japan) · 2025Article
- Implementation of Medical Hospitalist Care at a Korean Tertiary Hospital: A Retrospective Cross-Sectional Study.Journal of clinical medicine · 2024Article
- How Do We Establish the Utility and Evidence of General Medicine in Japan?International journal of general medicine · 2024Article
- Roles considered important for hospitalist and non-hospitalist generalist practice in Japan: a survey study.BMC primary care · 2023Observational
- Will the Introduction of the Hospitalist System Save Japan?Internal medicine (Tokyo, Japan) · 2023Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo examine the differences in the quality of care among inpatients before and after the introduction of the hospitalist system.
designA retrospective observational study.
settingA community teaching hospital in Japan.
participantsThe inpatients admitted between the preintervention (January-December 2018) and 1-year intervention (January-December 2019) periods. There were 8508 and 8788 inpatients in 2018 and 2019, respectively.
interventionsThe study compared the lengths of hospital stay and mortality among inpatients between the pre-and post-intervention (2018 and 2019) periods concerning the introduction of a hospital medicine department. OUTCOME MEASURES: The primary objective was to evaluate and compare the in-hospital mortality and the length of stay (LOS) between 2018 and 2019. The secondary objective was to identify the characteristics of hospitalists and non-hospitalists in the system.
resultsThe LOS was significantly reduced after the introduction of the hospital medicine department (adjusted difference, -0.659 days; 95% CI -1.118 to -0.136, p=0.01). There were no differences in the adjusted mortalities between the two periods.
conclusionsTo the best of our knowledge, our study is the first involving a teaching hospital in Japan to reveal that the hospitalist system had a positive effect on the efficiency of inpatient care by shortening the LOS. Further studies are needed to clarify other benefits related to the introduction of the hospital medicine department in Japan.
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