ArticleBMJ open2019
Cohort Profile: National health insurance service-senior (NHIS-senior) cohort in Korea.
Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
72 citing papers in PubMed.
- Secondary spinal fracture risk among patients residing in medically vulnerable areas: A population-wide study.The journal of spinal cord medicine · 2026Article
- Comorbidity Trajectories Before and After Hip Fracture in Elderly Patients: A Korean Nationwide Database Cohort Study.Journal of Korean medical science · 2026Article
- Impact of national cognitive screening on dementia care and hospitalization in South Korea.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Clopidogrel Vs Aspirin Monotherapy for Secondary Prevention After Percutaneous Coronary Intervention: A Nationwide Cohort Study.JACC. Asia · 2026Article
- Association between post-discharge destination and osteoporosis medication use after acute-care hospital discharge for hip fracture: a population-based cohort study.Archives of osteoporosis · 2026Article
- Article
- Community-based health-focused longitudinal aging studies in East and Southeast Asia: landscape and future directions.The Lancet regional health. Western Pacific · 2026Review
- Response to Comments on "Refining the Analytical Framework Linking CT Utilization and Pneumonia Incidence in Older Adults".Korean journal of radiology · 2026Article
- Impact of bone mineral density testing in the national health screening program on osteoporosis-related medical visits and fractures among women.Archives of osteoporosis · 2026Article
- Duration of anticholinergic burden and polypharmacy and the risk of fractures in older Korean adults: a nationwide cohort study.BMC geriatrics · 2026Article
- Impact of Designated Recovery Rehabilitation Institutions on the Readmission Rate of Older Adults.Journal of clinical medicine · 2026Article
- Continuity of Care and Risks of Hospitalization and Mortality in COPD: A Nationwide Cohort Study.International journal of chronic obstructive pulmonary disease · 2026Article
- Refined obesity, smoking exposure, and lipid metrics in mortality risk assessment: a nationwide cohort analysis.PloS one · 2026Article
- Impact of obesity on renal function in elderly Korean adults: a national population-based cohort study.Kidney research and clinical practice · 2026Article
- Impact of Increased Chest CT Utilization on the Diagnosis of Pneumonia in Older Adults: A Population-Based Study of 930,654 Individuals.Korean journal of radiology · 2025Article
- All-cause mortality risk following diabetic avoidable hospitalization among older patients with type 2 diabetes mellitus: a nationwide retrospective cohort study in South Korea.BMC public health · 2025Article
- Association between blood transfusion and early mortality in patient undergoing extracorporeal membrane oxygenation.Scientific reports · 2025Article
- Metabolic dysfunction-associated steatotic liver disease, metabolic alcohol-related liver disease, and incident dementia: a nationwide cohort study : MASLD, MetALD, and dementia risk.BMC gastroenterology · 2025Article
- Observational
- Association between fragmented care and incident mood disorder in elderly patients with colorectal cancer: a retrospective cohort study in South Korea.BMC psychiatry · 2025Article
12 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe National Health Insurance Service (NHIS)-Senior was set up to provide high-quality longitudinal data that can be used to explore various aspects of changes in the socio-economical and health status of older adults, to predict risk factors and to investigate their health outcomes.
participantsThe NHIS-Senior cohort, a Korean nationwide retrospective administrative data cohort, is composed of older adults aged 60 years and over in 2002. It consists of 558 147 people selected by 10% simple random sampling method from a total of 5.5 million subjects aged 60+ in the National Health Information Database. The cohort was followed up through 2015 for all subjects, except for those who were deceased. FINDINGS TO DATE: The healthcare utilisation and admission rates were the highest for acute upper respiratory infections and influenza (75.2%). The age-standardised (defined with reference to the world standard population) mortality rate for 10 years (through 2012) was 4333 per 100 000 person-years. Malignant neoplasms were the most common cause of death in both sexes (1032.1 per 100 000 person-years for men, 376.7 per 100 000 person-years for women). A total of 34 483 individuals applied for long-term care service in 2008, of whom 17.9% were assessed as grade 1, meaning that they were completely dependent on the help of another person to live daily life. FUTURE PLANS: The data are provided for the purposes of policy and academic research under the Act on Promotion of the Provision and Use of Public Data in Korea. The NHIS-Senior cohort data are only available for Korean researchers at the moment, but it is possible for researchers outside the country to gain access to the data by conducting a joint study with a Korean researcher. The cohort will be maintained and continuously updated by the NHIS.
Indexed as
Identifiers
What OpenQuestion holds
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.