ReviewClinical epidemiology2020
Existing Data Sources in Clinical Epidemiology: Laboratory Information System Databases in Denmark.
Review in Clinical epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 154 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
154 citing papers in PubMed.
- Subacute Thyroiditis in Denmark: A Nationwide Study of 1763 Cases.Clinical endocrinology · 2026Article
- Proteinuria in Preeclampsia and Long-Term Risk of Maternal Kidney and Cardiovascular Disease: A Population-Based Cohort Study.BJOG : an international journal of obstetrics and gynaecology · 2026Article
- Association between timing of statin treatment after diabetes diagnosis and risk of dementia: a nationwide observational study.The Lancet regional health. Europe · 2026Article
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- Article
- Influenza Vaccination Among Individuals With Type 1 Diabetes in Denmark: Coverage, Persistence, and Determinants, 2015-2022.Diabetes, obesity & metabolism · 2026Article
- Elevated fracture risk in a Danish cohort with type 2 diabetes mellitus and microvascular diseases.JBMR plus · 2026Article
- Empagliflozin Versus Dapagliflozin and Urogenital Adverse Events in Type 2 Diabetes: A Target Trial Emulation.Diabetes, obesity & metabolism · 2026Article
- Use of Glucagon-Like Peptide-1 Receptor Agonists in Danish Adolescents and Young Adults 2018-2025.Obesity (Silver Spring, Md.) · 2026Article
- Chronic but not Transient Anemia Is Associated With Atrial Fibrillation Recurrence After Catheter Ablation.Journal of arrhythmia · 2026Article
- Article
- Initiation of eplerenone vs. spironolactone and all-cause mortality in HFrEF: linked database study.European heart journal. Cardiovascular pharmacotherapy · 2026Article
- Hormonal Contraception and Initiation of Semaglutide Therapy.JAMA network open · 2026Article
- Predominantly genetic, intrauterine, and lifestyle aetiologies of type 2 diabetes are associated with distinct clinical presentations and risk of complications: a Danish cross-sectional and follow-up study.EClinicalMedicine · 2026Article
- Discontinuation of SGLT2i After a Urogenital Infection: A Population-Based Matched Cohort Study of Patients With Type 2 Diabetes.Diabetes, obesity & metabolism · 2026Article
- Effectiveness and Safety of Semaglutide in Type 1 Diabetes: A Danish Nationwide Cohort Study (2018-2024).The Lancet regional health. Europe · 2026Article
- Evaluation of clinical utility in emulated clinical trials.European journal of epidemiology · 2026Article
- Cardioprotective glucose-lowering drugs, statins, and secondary major adverse cardiovascular events: a nationwide cohort study of individuals with type 2 diabetes and cardiovascular disease.Cardiovascular diabetology · 2026Article
- Acute kidney injury among intensive care unit patients in Denmark: temporal changes in mortality and kidney outcomes from 2010 to 2024.Critical care (London, England) · 2026Article
- COVID-19 Vaccination and Kidney Disease : SARS-CoV-2 Vaccine Effect on Risk of Infection and Subsequent Outcomes in Patients with Chronic Kidney Disease.Journal of general internal medicine · 2026Article
94 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
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Routine biomarker results from hospital laboratory information systems, covering hospitals and general practitioners, in Denmark are available to researchers through access to the regional Clinical Laboratory Information System Research Database at Aarhus University and the nationwide Register of Laboratory Results for Research. This review describes these two data sources. The laboratory databases have different geographical and temporal coverage. They both include individual-level biomarker results that are electronically transferred from laboratory information systems. The biomarker results can be linked to all other Danish registries at the individual level, using the unique identifier, the CPR number. The databases include variables such as the CPR number, date and time (hour and minute) of sampling, NPU code, and name of the biomarker, identification code for the laboratory and the requisitioner, the test result with the corresponding unit, and the lower and upper reference limits. Access to the two databases differs since they are hosted by two different institutions. Data cannot be transferred outside Denmark, and direct access is provided only to Danish institutions. It is concluded that access to data on routine biomarkers expands the detailed biological and clinical information available on patients in the Danish healthcare system. The full potential is enabled through linkage to other Danish healthcare registries.
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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.