OOIR: Observatory of International Research

Papers

(The TQCC of Clinical Epidemiology is 8. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-06-01 to 2026-06-01.)

Article	Citations
Identifying Non-Steroidal Anti-Inflammatory Drug (NSAID) Users Among People with Osteoarthritis Through Administrative and Clinician-Reported Data – A Validation Study of 116,162 Patients	147
Comments on “Development and Validation of a META-Algorithm to Identify the Indications of Use of Biological Drugs Approved for the Treatment of Immune-Mediated Inflammatory Diseases from Claims Datab	84
Hospitalization Endpoint in Clinical Trials of Outpatient Settings: using Anti-SARS-COV-2 Therapy as an Example	83
Using Routinely Collected Electronic Healthcare Record Data to Investigate Fibrotic Multimorbidity in England [Letter]	71
Modeling the Transmission Dynamics of COVID-19 Among Five High Burden African Countries	67
Burden of Carbon Monoxide Poisoning in Asian Countries From 1990 to 2021 and Its Projection Until 2030: An Analysis of the Global Burden of Disease Study 2021	67
Incidence of Graves’ Disease with Validation and Completeness of the Diagnosis for Registry Extracts in the Danish National Patient Register	64
Identifying Individual Medications Affecting Pulmonary Outcomes When Multiple Medications are Present	60
The Impact of the COVID-19 Pandemic on Incidence and Short-Term Survival for Common Solid Tumours in the United Kingdom: A Cohort Analysis	52
Initiation of Medical Therapy for Heart Failure Patients According to Kidney Function: A Danish Nationwide Study	46
Discriminative Ability of the Charlson Comorbidity Index for Long-Term Mortality in a General Population: Nationwide, Population-Based Study of 10 Million Adults in Sweden	46
On the Importance of a Clear Definition of Time Horizon for Time-to-Event Dynamic Predictions: A Systematic Review and a Concrete Illustration in Kidney Transplantation	43
Large Burden of Stroke Incidence in People with Cardiac Disease: A Linked Data Cohort Study	39
Cardiovascular Data Quality in the Danish National Patient Registry (1977–2024): A Systematic Review	31
The DIAbetes MANagement and Treatment (DIAMANT) Cohort	29
The Danish National Hospital Medication Register: A Resource for Pharmacoepidemiology	27
Association of Prior Antithrombotic Drug Use with 90-Day Mortality After Intracerebral Hemorrhage	27
Response to “A Validation Study of the Danish ICD-10 Diagnosis Code K75.0 for Pyogenic Liver Abscess” [Response to Letter]	27
Data-Driven Identification of Long-Term Glycemia Clusters and Their Individualized Predictors in Finnish Patients with Type 2 Diabetes	27
Report on the Joint Workshop on the Relations between Health Inequalities, Ageing and Multimorbidity, Iceland, May 3–4, 2023	26
Risk of Second Primary Cancer Among Patients with Thyroid Carcinoma in Finland: A Nationwide Population-Based Study	25
Trends in Abdominal Aortic Aneurysm Repair Incidence, Comorbidity, Treatment, and Mortality: A Danish Nationwide Cohort Study, 1996–2018	24
Cholesterol and Hypertension Treatment Improve Coronary Risk Prediction but Not Time-Dependent Covariates or Competing Risks	24
Advancing an Algorithm for the Identification of Patients with High Data-Continuity in Electronic Health Records	23
Validity of a Hypertrophic Cardiomyopathy Diagnosis in Adult Patients in the Danish National Patient Register	23

An Explainable Machine Learning Model to Predict Acute Kidney Injury After Cardiac Surgery: A Retrospective Cohort Study	22
Continued Use of Medications Withdrawn Internationally for Safety Concerns: Insights from an Urban Employed Population in China	22
Adverse Clinical Outcomes Attributable to Socioeconomic and Ethnic Disparities Among People with Type 2 Diabetes in New Zealand Between 1994–2018: A Multiple Linked Cohort Study	21
Association Between Pneumonia Risk and Anticholinergic Burden Among Patients with Different Frailty Levels [Response to Letter]	20
Sodium–Glucose Cotransporter 2 Inhibitors and Lower Risk of Depression in Population with Type 2 Diabetes Mellitus: A Population-Based Active Comparator, New-User Design	20
Hospital-Treated Infections and 15-year Incidence of Musculoskeletal Disorders: A Large Population-Based Cohort Study	19
Disease Burden of Glaucoma in China: Findings from the Global Burden of Disease 2019 Study	19
Potential of Health Insurance Claims Data to Predict Fractures in Older Adults: A Prospective Cohort Study	19
Mortality Outcomes in People with Lung Cancer with and without Type2 Diabetes: A Cohort Study in England	18
Uneven Between-Hospital Distribution of Patient-Related Risk Factors for Adverse Outcomes of Colorectal Cancer Treatment: A Population-Based Register Study	18
Trajectories of Body Mass Index and Risk for Diabetes Complications and All-Cause Mortality in Finnish Type 2 Diabetes Patients	17
Prevalence of Statin Use and Predictors of Statin Initiation Among Patients with Alcohol-Related Cirrhosis - A Danish Nationwide Cohort Study	17
Timing of Core Sepsis Bundle Elements Initiation in Critically Ill Patients: A Multicenter Target Trial Emulation Study	16
Anticancer Drugs Compared to No Anticancer Drugs in Patients with Advanced Hepatobiliary Cancer: A Mapping Review and Evidence Gap Map	16
Validation of a Diagnostic Model to Differentiate Multiple Myeloma from Bone Metastasis	16
Time Trends in Male Breast Cancer Incidence, Mortality, and Survival in Austria (1983–2017)	16
Implementing Multiple Imputation for Missing Data in Longitudinal Studies When Models are Not Feasible: An Example Using the Random Hot Deck Approach	16
A Novel Biomarker Scoring System Alone or in Combination with the GRACE Score for the Prognostic Assessment in Non-ST-Elevation Myocardial Infarction	15
Risks of Developing Diabetes and Hyperglycemic Crisis Following Carbon Monoxide Poisoning: A Study Incorporating Epidemiologic Analysis and Animal Experiment	15
Investigating Drug-Induced Thyroid Dysfunction Adverse Events Associated With Non-Selective RET Multi-Kinase Inhibitors: A Pharmacovigilance Analysis Utilizing FDA Adverse Event Reporting System Data	15
Performance of Different Comorbidity Indices in Predicting Mortality in Danish Pancreatic Cancer Patients	14
Comments on the Risk of Gout in Patients with Psoriasis [Letter]	14
Comparing Methods for Classification of Hospital Visits in the Danish National Patient Registry (DNPR): DNPR3 Versus DNPR2	14
Causes of Excess Mortality in Diabetes Patients Without Coronary Artery Disease: A Cohort Study Revealing Endocrinologic Contributions	14
Response to “A Validation Study of the Danish ICD-10 Diagnosis Code K75.0 for Pyogenic Liver Abscess” [Letter]	14
Effects of Curative-Intent Treatments on Hepatocellular Carcinoma Survival in Alcohol-Related Cirrhosis: A Nationwide Study	14
Serum Prealbumin Levels and Risks of Adverse Clinical Outcomes After Ischemic Stroke	14
Ectopic Pregnancy Mortality Trends in BRICS: Age-Period-Cohort Analysis of Global Burden Disease 2021 Data and 2030 Forecast	14
Self-Measured Blood Pressure Monitoring in Primary Care: Retrospective Analysis from a Large US Healthcare System	14
Post-Marketing Safety Concerns with Efgartigimod alfa: A Pharmacovigilance Analysis Based on the Food and Drug Administration Adverse Event Reporting System Database	14
The Danish Atrial Fibrillation Registry: A Multidisciplinary National Pragmatic Initiative for Monitoring and Supporting Quality of Care Based on Data Retrieved from Administrative Registries	14
Incidence and Risk Factors of Lower Limb Deep Vein Thrombosis in Psychiatric Inpatients by Applying Machine Learning to Electronic Health Records: A Retrospective Cohort Study	13
Pregnancy Outcomes in Women with Type 1 Diabetes by Socioeconomic and Mental Health Disadvantages	13
Validity of Algorithm for Classification of In- and Outpatient Hospital Contacts in the Danish National Patient Registry	13
The Mediating Role of Body Mass Index in the Association Between Age at First Childbirth and Lung Function Among Chinese Postmenopausal Women	12
A New Drug Safety Signal Detection and Triage System Integrating Sequence Symmetry Analysis and Tree-Based Scan Statistics with Longitudinal Data	12
Survival in Thyroid Cancer in Sweden From 1999 To 2018	11
The Mediation Role of Insulin Resistance and Chronic Systemic Inflammation in the Association Between Obesity and NAFLD: Two Cross-Sectional and a Mendelian Randomization Study	11
10-Year Multimorbidity Trajectories in Older People Have Limited Benefit in Predicting Short-Term Health Outcomes in Comparison to Standard Multimorbidity Thresholds: A Population-Based Study	11
Healthcare Use Patterns for High Volume Musculoskeletal Shoulder Disorders: A Longitudinal Cohort from the US Military Health System	11
The Epidemiology of Bile Acid Diarrhea in Denmark [Letter]	11
Effects of COVID-19 Pandemic and Lockdown on Monitoring and Treatment Balance of Finnish Coronary Heart Disease and Type 2 Diabetes Patients	11
Development and Validation of an Algorithm to Achieve Complete Registration of Danish Patients with Carcinoma In Situ of the Breast, 2008–2023	11
Agreement Between Self-Reported Information and Health Register Data on Chronic Diseases in the Oldest Old	10
Postoperative Adverse Outcomes in Patients With Frailty Undergoing Urologic Surgery Among American Patients: A Propensity-Score Matched Retrospective Cohort Study	10
Using Restricted Mean Time Lost to Evaluate the Prognostic Effects on Locally Advanced Breast Cancer Considering Competing Risks	10
Variation in Psychometric Testing in General Practice – A Nationwide Cohort Study	10
Prevalence and Data-Driven Exploration of Pre-Diagnostic Symptoms and Features of Gilbert’s Syndrome in the UK Primary Care Population	10
Association Between Medication Adherence and Risk of COPD in Adult Asthma Patients: A Retrospective Cohort Study in Canada	10
Statin Therapy in Early Breast Cancer: The MASTER Trial; A Randomized Phase III, Placebo-Controlled Comparison of Standard (Neo)Adjuvant Therapy Plus Atorvastatin versus Standard (Neo)Adjuvant Therapy	10

Knowledge, Perceptions and Reporting Practices of Theoretical Design in Causal Observational Epidemiological Studies on the Role of Antibiotic Use in the Occurrence of Asthma in Children	10
Risk of Depression and Anxiety in Those Who Gave Birth to Children Who Developed Invasive Group B Streptococcal Disease: A Population-Based Cohort Study	10
Can Lipid-Lowering Drugs Reduce the Risk of Cholelithiasis? A Mendelian Randomization Study	10
Transforming the Information System for Research in Primary Care (SIDIAP) in Catalonia to the OMOP Common Data Model and Its Use for COVID-19 Research	10
The Danish National Child Health Register	10
Neonatal Phototherapy and Clinical Characteristics: The Danish National Patient Registry 2000–2016	10
Impact of Changes in Patient Reported Outcomes on Healthcare Use After a Self-Management Supportive Intervention for Individuals with Low Back Pain	10
A Validated Algorithm for Register-Based Identification of Patients with Relapse of Clinical Stage I Testicular Cancer	10
Epidemiology of Invasive Candidiasis	10
Identification of Drugs Associated with Lower Risk of Parkinson’s Disease Using a Systematic Screening Approach in a Nationwide Nested Case–Control Study	9
Treatment of Proximal Humeral Fractures in Older Patients During COVID-19 Pandemic in Germany	9
Community Use of Repurposed Drugs Before and During COVID-19 Pandemic in the Netherlands: An Interrupted Time-Series Analysis	9
Predictors, Healthcare Utilization and Costs Related to Short-Term Stays in Patients with COPD: A Registry-Based Analysis in Norway	9
Registration of Amyotrophic Lateral Sclerosis: Validity in the Danish National Patient Registry	9
Regression Discontinuity Designs in Epidemiology: A Practical Guide	9
Adaptation of the Charlson Comorbidity Index for Register-Based Research in Sweden [Corrigendum]	9
Incidence of Carpal Tunnel Syndrome Requiring Surgery May Increase in Patients Treated with Trigger Finger Release: A Retrospective Cohort Study	8
Obituary – Anders Ekbom	8
Burden of Gastrointestinal Tumors in Asian Countries, 1990–2021: An Analysis for the Global Burden of Disease Study 2021	8
Assessing the Accuracy of Symptoms and Adverse Events Reporting for Lung Cancer Treatment in the Danish National Patient Registry	8
Feedback on “Recording of Alcohol Use Disorder in Electronic Health Records: Developing a Recommended Codelist for Research” [Letter]	8
Implementation of Day Surgery in Denmark Compared with Benchmarks from the United Kingdom: A Nationwide Register-Based Cohort Study	8
Serious Mental Illness Exacerbation Post-Bereavement: A Population-Based Study of Partners and Adult Children	8
Cohort Profile: The Danish Venous Thromboembolism Cohort – A Linkage Between Danish National Health Surveys and Health Registers	8
Estimation of Personal Symptom Networks Using the Ising Model for Adult Survivors of Childhood Cancer: A Simulation Study with Real-World Data Application	8
Occupational Physical Activity Among Pregnant Employees in the Danish Workforce: The PRECISE Occupational Cohort Profile	8
A Novel Chronic Kidney Disease Phenotyping Algorithm Using Combined Electronic Health Record and Claims Data	8
Genetically Predicted Serum Albumin and Risk of Colorectal Cancer: A Bidirectional Mendelian Randomization Study	8