ReviewClinical epidemiology2022
Existing Data Sources for Clinical Epidemiology: Database of the National Hospital Organization in Japan.
Review in Clinical epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed.
- Clinical characteristics and healthcare utilization of orthostatic dysregulation in Japan: a nationwide descriptive study.BioPsychoSocial medicine · 2026Article
- Machine Learning Models Incorporating Nursing Care Needs to Predict 180-Day Prognosis in Patients With Heart Failure: Validation With Discrimination and Calibration Analyses.Circulation reports · 2026Article
- Clinical Outcomes and Healthcare Costs of CART Versus Paracentesis for Malignant Ascites: A Nationwide Retrospective Cohort Study in Japan.Cancer medicine · 2026Article
- Risk-benefit balance of blood cultures among patients with stage IV cancer in unplanned admission: a nationwide propensity score-weighted study in Japan.The Journal of antimicrobial chemotherapy · 2025Article
- Machine Learning for Predicting Postoperative Functional Disability and Mortality Among Older Patients With Cancer: Retrospective Cohort Study.JMIR aging · 2025Article
- Alpha and Delta variants and vaccination effectiveness against severity in COVID-19 inpatients based on medical claims in Japan.GHM open · 2023Article
- Article
- Drug effectiveness for COVID-19 inpatients inferred from Japanese medical claim data using propensity score matching.F1000Research · 2023Observational
- Risk of Underlying Diseases and Effectiveness of Drugs on COVID-19 Inpatients Assessed Using Medical Claims in Japan: Retrospective Observational Study.International journal of general medicine · 2023Article
- Economic and clinical burden from carbapenem-resistant bacterial infections and factors contributing: a retrospective study using electronic medical records in Japan.BMC infectious diseases · 2022Article
- Profile and Data Quality of DataVerse Japan: A Multi-Institutional Clinical Data Platform for Emergency and Critical Care Research.Acute medicine & surgeryArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This review introduces the National Hospital Organization (NHO) database in Japan. The NHO has maintained two databases through a system of data collection from 140 hospitals in the NHO. National Hospital Organization Clinical Data Archives (NCDA) is collecting clinical information in real time from the electronic medical records since January 2016, and Medical Information Analysis (MIA) databank is collecting daily insurance claims data since April 2010. The NHO database covers more than 8 million patients in 140 hospitals throughout Japan. The database consists of the information of patient profiles, hospital admission and discharge, diagnosis with ICD-10 codes, text data from medical chart, daily health insurance claims such as medical procedures, medications or surgeries, vital signs and laboratory data, and so on. The NHO database includes a wide variety of diseases and settings, including acute, chronic and intractable diseases, emergency medical services, disaster medicine, response to emerging infectious disease outbreaks, medical care according to health policies such as psychiatry, tuberculosis, or muscular dystrophy, and health systems in sparsely populated non-urban areas. Among several common diseases, the database has representativeness in terms of age distribution compared with the Patient Survey 2017 by the Ministry of Health, Labour and Welfare. Interested researchers can contact (700-dbproject@mail.hosp.go.jp) the NHO database division to obtain more information about the NHO database for utilization.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.