Clinical Epidemiology

Article	Citations
Nordic Health Registry-Based Research: A Review of Health Care Systems and Key Registries	189
<p>Synthetic and External Controls in Clinical Trials – A Primer for Researchers</p>	137
<p>Trajectory Modelling Techniques Useful to Epidemiological Research: A Comparative Narrative Review of Approaches</p>	133
Adaptation of the Charlson Comorbidity Index for Register-Based Research in Sweden	106
<p>Existing Data Sources in Clinical Epidemiology: Laboratory Information System Databases in Denmark</p>	92
<p>Three Quarters of People with SARS-CoV-2 Infection are Asymptomatic: Analysis of English Household Survey Data</p>	57
<p>Epidemiology of Atypical Hemolytic Uremic Syndrome: A Systematic Literature Review</p>	56
<p>Caesarean Delivery and Risk of Chronic Inflammatory Diseases (Inflammatory Bowel Disease, Rheumatoid Arthritis, Coeliac Disease, and Diabetes Mellitus): A Population Based Registry Study of 2	52
<p>Epidemiologic and Clinical Characteristics of 26 Cases of COVID-19 Arising from Patient-to-Patient Transmission in Liaocheng, China</p>	43
<p>Impact of the Transition from ICD–9–CM to ICD–10–CM on the Identification of Pregnancy Episodes in US Health Insurance Claims Data</p>	40
<p>Existing Data Sources for Clinical Epidemiology: The PHARMO Database Network</p>	39
<p>Performance of ICD-10-CM Diagnosis Codes for Identifying Acute Ischemic Stroke in a National Health Insurance Claims Database</p>	38
<p>Survival of Hospitalized COVID-19 Patients in Northern Italy: A Population-Based Cohort Study by the ITA-COVID-19 Network</p>	36
<p>Existing Data Sources in Clinical Epidemiology: The Danish COVID-19 Cohort</p>	34
A Real-World Disproportionality Analysis of Olaparib: Data Mining of the Public Version of FDA Adverse Event Reporting System	34
<p>Comparing the Performance of Charlson and Elixhauser Comorbidity Indices to Predict In-Hospital Mortality Among a Chinese Population</p>	33
Global Burden of Ischemic Heart Disease and Attributable Risk Factors, 1990–2017: A Secondary Analysis Based on the Global Burden of Disease Study 2017	33
<p>Epidemiology of Human Adenoviruses: A 20-Year Retrospective Observational Study in Hospitalized Patients in Bern, Switzerland</p>	33
<p>Validity of Claims Diagnosis Codes for Cardiovascular Diseases in Diabetes Patients in Japanese Administrative Database</p>	32
<p>Statistical Analysis of Clinical COVID-19 Data: A Concise Overview of Lessons Learned, Common Errors and How to Avoid Them</p>	32
<p>Fetal Programming of Semen Quality (FEPOS) Cohort – A DNBC Male-Offspring Cohort</p>	28
<p>Increasing Incidence and Prevalence of Acquired Hemolytic Anemias in Denmark, 1980–2016</p>	27
<p>The Risk of Selection Bias in a Clinical Multi-Center Cohort Study. Results from the Norwegian Cognitive Impairment After Stroke (Nor-COAST) Study</p>	27
Recalibrating SARS-CoV-2 Antigen Rapid Lateral Flow Test Relative Sensitivity from Validation Studies to Absolute Sensitivity for Indicating Individuals Shedding Transmissible Virus	25
Validation of ICD-10-CM Diagnosis Codes for Identification of Patients with Acute Hemorrhagic Stroke in a National Health Insurance Claims Database	25

Cardiovascular Disease Prediction by Machine Learning Algorithms Based on Cytokines in Kazakhs of China	25
Positive Predictive Value of COVID-19 ICD-10 Diagnosis Codes Across Calendar Time and Clinical Setting	25
Risk of Severe Covid-19 in Patients with Celiac Disease: A Population-Based Cohort Study	24
Swedish Covid-19 Investigation for Future Insights – A Population Epidemiology Approach Using Register Linkage (SCIFI-PEARL)	23
Positive Predictive Value of ICD-10 Diagnosis Codes for COVID-19	22
<p>Comparison Between PPOS and GnRHa-Long Protocol in Clinical Outcome with the First IVF/ICSI Cycle: A Randomized Clinical Trial</p>	22
The National Danish Cardiac Arrest Registry for Out-of-Hospital Cardiac Arrest – A Registry in Transformation	22
Trends in Hysterectomy Incidence Rates During 2000–2015 in Denmark: Shifting from Abdominal to Minimally Invasive Surgical Procedures	22
<p>Validity of Acute Cardiovascular Outcome Diagnoses Recorded in European Electronic Health Records: A Systematic Review</p>	22
Trends in Surgical Glaucoma Treatment in Germany Between 2006 and 2018	20
Trends in Incidence and Mortality of Gynecological and Breast Cancers in Poland (1980–2018)	19
Incidence of ICD-Based Diagnoses of Alcohol-Related Disorders and Diseases from Swedish Nationwide Registers and Suggestions for Coding	19
The Validity of Danish Prescription Data to Measure Use of Aspirin and Other Non-Steroidal Anti-Inflammatory Drugs and Quantification of Bias Due to Non-Prescription Drug Use	18
<p>The DANish Comorbidity Index for Acute Myocardial Infarction (DANCAMI): Development, Validation and Comparison with Existing Comorbidity Indices</p>	18
<p>The Danish Chiropractic Low Back Pain Cohort (ChiCo): Description and Summary of an Available Data Source for Research Collaborations</p>	17
<p>Identification of Patients with New-Onset Heart Failure and Reduced Ejection Fraction in Danish Administrative Registers</p>	17
Existing Data Sources for Clinical Epidemiology: The Danish Study Group of Infections of the Brain Database (DASGIB)	16
Identification of Childhood-Onset Inflammatory Bowel Disease in Swedish Healthcare Registers: A Validation Study	16
Establishment of the SingHealth Diabetes Registry	16
Identification of Biomarkers for Preeclampsia Based on Metabolomics	15
<p>Retraction of COVID-19 Pharmacoepidemiology Research Could Have Been Avoided by Effective Use of Reporting Guidelines</p>	15
The Effect of Prucalopride on the Completion Rate and Polyp Detection Rate of Colon Capsule Endoscopies	15
<p>Risk Factors for Heart Failure with Preserved or Reduced Ejection Fraction Among Medicare Beneficiaries: Application of Competing Risks Analysis and Gradient Boosted Model</p>	15
Completeness in the Swedish Fracture Register and the Swedish National Patient Register: An Assessment of Humeral Fracture Registrations	15
Incidence and Prevalence of Inflammatory Bowel Disease in Norway and the Impact of Different Case Definitions: A Nationwide Registry Study	14
Incidence of Inflammatory Bowel Disease in South Asian and Chinese People: A Population-Based Cohort Study from Ontario, Canada	14
Measuring Medication Adherence in a Population-Based Asthma Administrative Pharmacy Database: A Systematic Review and Meta-Analysis	14
Sixty-Day Mortality Among 520 Italian Hospitalized COVID-19 Patients According to the Adopted Ventilatory Strategy in the Context of an Integrated Multidisciplinary Clinical Organization: A Population	14
Temporal Trends in the Disease Burden of Colorectal Cancer with Its Risk Factors at the Global and National Level from 1990 to 2019, and Projections Until 2044	14
Quality and Completeness of Myocardial Infarction Recording in Clinical Practice Research Datalink Aurum	14
Smoking and COVID-19 Infection and Related Mortality: A Prospective Cohort Analysis of UK Biobank Data	13
Validity of Inflammatory Bowel Disease Diagnoses in the Danish National Patient Registry: A Population-Based Study from the North Denmark Region	13
Positive Predictive Value of Diagnostic Codes for Inflammatory Bowel Disease in the Danish National Patient Registry Among Individuals 50+ Years, Using Patient Records as Reference Standard	13
<p>Long-Term Survival, Morbidity, Social Functioning and Risk of Disability in Patients with a Herpes Simplex Virus Type 1 or Type 2 Central Nervous System Infection, Denmark, 2000–2016</p>	13
The Metabolic Score for Insulin Resistance (METS-IR) Predicts Cardiovascular Disease and Its Subtypes in Patients with Hypertension and Obstructive Sleep Apnea	13
<p>Congenital Malformations in Denmark: Considerations for the Use of Danish Health Care Registries</p>	13
<p>Sociodemographic Characteristics Associated with Contacts to Emergency Medical Services and Out-of-Hours Primary Care: An Observational Study of 2.3 Million Citizens</p>	13
Existing Data Sources in Clinical Epidemiology: The Taiwan National Health Insurance Laboratory Databases	13
Epidemiology of Vitiligo – A Dual Population-Based Approach	12
<p>The Validity of Intracerebral Hemorrhage Diagnoses in the Danish Patient Registry and the Danish Stroke Registry</p>	12
<p>Combining Inpatient and Outpatient Data for Diagnosis of Non-Valvular Atrial Fibrillation Using Electronic Health Records: A Validation Study</p>	12
Trajectories of Musculoskeletal Healthcare Utilization of People with Chronic Musculoskeletal Pain – A Population-Based Cohort Study	12
Long-Term Risk of Skin Cancer and Lymphoma in Users of Topical Tacrolimus and Pimecrolimus: Final Results from the Extension of the Cohort Study Protopic Joint European Longitudinal Lymphoma and Skin	12
<p>Incidence of and Mortality Due to Human Prion Diseases in Taiwan: A Prospective 20-Year Nationwide Surveillance Study from 1998 to 2017</p>	12
Glycemic Control in Pregnancies Complicated by Pre-Existing Diabetes Mellitus and Congenital Malformations: A Danish Population-Based Study	11
<p>Diagnostic Screening for Lumbar Spinal Stenosis</p>	11
Existing Data Sources for Clinical Epidemiology: Database of the National Hospital Organization in Japan	11
Assessing Techniques for Quantifying the Impact of Bias Due to an Unmeasured Confounder: An Applied Example	11
Development and Validation of a Nordic Multimorbidity Index Based on Hospital Diagnoses and Filled Prescriptions	11
<p>The Impact of Lung Function on Extra-Pulmonary Diseases and All-Cause Mortality in US Adult Population with and without COPD</p>	11

Global, Regional, and National Burden of Urolithiasis from 1990 to 2019: A Systematic Analysis for the Global Burden of Disease Study 2019	11
Positive Predictive Value of ICD-10 Codes for Cerebral Venous Sinus Thrombosis in Taiwan’s National Health Insurance Claims Database	11
Prevalence and Medications of Atopic Dermatitis in Germany: Claims Data Analysis	11
<p>Prevalence of Congenital Hemolytic Disorders in Denmark, 2000–2016</p>	10
<p>Subsequent Development of Epithelial Ovarian Cancer After Ovarian Surgery for Benign Ovarian Tumor: A Population-Based Cohort Study</p>	10
Autism Spectrum Disorder Diagnoses: A Comparison of Countries with Different Income Levels	10
<p>Effect of Smoking on Breast Cancer by Adjusting for Smoking Misclassification Bias and Confounders Using a Probabilistic Bias Analysis Method</p>	10
Combined Lifestyle Behaviors and the Incidence of Common Cancer Types in the Norwegian Women and Cancer Study (NOWAC)	10
Positive Predictive Value of the ICD-10 Diagnosis Code for Long-COVID	9
Efficacy and Safety of Liraglutide and Semaglutide on Weight Loss in People with Obesity or Overweight: A Systematic Review	9
<p>Assessment of the Accuracy of Using <em>ICD-10</em> Codes to Identify Systemic Sclerosis</p>	9
Pharmacogenetics of Anticoagulation and Clinical Events in Warfarin-Treated Patients: A Register-Based Cohort Study with Biobank Data and National Health Registries in Finland	9
Effect of Beta-Blockers on Stroke Outcome: A Meta-Analysis	9
<p>The Danish Hip Arthroscopy Registry: Registration Completeness and Patient Characteristics Between Responders and Non-Responders</p>	9
Comparing Health Administrative and Clinical Registry Data: Trends in Incidence and Prevalence of Pediatric Inflammatory Bowel Disease in British Columbia	9
<p>Validation of an Algorithm to Ascertain Late Breast Cancer Recurrence Using Danish Medical Registries</p>	9
<p>Treatment Patterns Among Adults with Primary Immune Thrombocytopenia Diagnosed in Hematology Clinics in the United States</p>	9
Stroke Incidence and Death in Atrial Fibrillation Patients Newly Treated with Direct Oral Anticoagulants	8
<p>Clinical Practice Status of Sentinel Lymph Node Biopsy for Early-Stage Breast Cancer Patients in China: A Multicenter Study</p>	8
Epidemiological Trends of Kidney Cancer Along with Attributable Risk Factors in China from 1990 to 2019 and Its Projections Until 2030: An Analysis of the Global Burden of Disease Study 2019	8
Prevalence and Incidence Rates of Atrial Fibrillation in Denmark 2004–2018	8
<p>Corticosteroids Prior to Embryo Transfer in Assisted Reproduction in Women with Crohn’s Disease and Ulcerative Colitis – A Nationwide Cohort Study</p>	8
<p>Real-World Epidemiology of Potassium Derangements Among Chronic Cardiovascular, Metabolic and Renal Conditions: A Population-Based Analysis</p>	8
Risk Stratification in Patients with Ischemic Stroke and Residual Cardiovascular Risk with Current Secondary Prevention	8
<p>Long-Term Risk of Stroke and Poststroke Outcomes in Patients with Heart Failure: Two Nationwide Studies</p>	8
Acupuncture Relieves Opioid-Induced Constipation in Clinical Cancer Therapy – A Meta-Analysis and Systematic Review	8
Sex Differences of Combined Effects Between Hypertension and General or Central Obesity on Ischemic Stroke in a Middle-Aged and Elderly Population	8
<p>Positive Predictive Value of the Giant Cell Arteritis Diagnosis in the Danish National Patient Registry: A Validation Study</p>	8
<p>Development and Evaluation of a Prediction Model for Ascertaining Rheumatic Heart Disease Status in Administrative Data</p>	8
Maternal Viral Infection in Early Pregnancy and Risk of Congenital Heart Disease in Offspring: A Prospective Cohort Study in Central China	8
Genetically Predicted Cigarette Smoking in Relation to Risk of Polycystic Ovary Syndrome	8
Decreasing Incidence of Alcohol-Related Liver Disease in Denmark: A 25-Year Nationwide Study	8
Unraveling COVID-19: A Large-Scale Characterization of 4.5 Million COVID-19 Cases Using CHARYBDIS	8
<p>Effects of Exogenous Hormones and Reproductive Factors on Female Melanoma: A Meta-Analysis</p>	8
Time Trends in Incidence of Reported Memory Concerns and Cognitive Decline: A Cohort Study in UK Primary Care	8
The Global Burden of Appendicitis in 204 Countries and Territories from 1990 to 2019	8
<p>Use of Immunomodulating Drugs and Risk of Cutaneous Melanoma: A Nationwide Nested Case-Control Study</p>	8
Antiemetic Prescription Fills in Pregnancy: A Drug Utilization Study Among 762,437 Pregnancies in Norway	7
Assessing the Associations of Growth Differentiation Factor 15 with Rheumatic Diseases Using Genetic Data	7
Aortic Dissections in the Population-Based Danish National Patient Registry from 1996–2016: A Validation Study	7
<p>Rheumatoid Arthritis as a Risk Factor for Coronary Artery Calcification and Obstructive Coronary Artery Disease in Patients with Chest Pain: A Registry Based Cross-Sectional Study</p>	7
Incidence and Survival for Head and Neck Cancers in Estonia, 1996–2016: A Population-Based Study	7
Prevalence and Associated Risk Factors of Hypertension in Adults with Disabilities: A Cross-Sectional Study in Shanghai, China	7
Case-Ascertainment Models to Identify Adults with Obstructive Sleep Apnea Using Health Administrative Data: Internal and External Validation	7
Cardiovascular Risk Associated with Methotrexate versus Retinoids in Patients with Psoriasis: A Nationwide Taiwanese Cohort Study	7
<p>Temporal Trends of the Incidence of Ischemic Heart Disease in Iran Over 15 Years: A Comprehensive Report from a Multi-Centric Hospital-Based Registry</p>	7
<p>Work Loss in Relation to Pharmacological and Surgical Treatment for Crohn’s Disease: A Population-Based Cohort Study</p>	7
<p>Association Between Common Infections and Incident Post-Stroke Dementia: A Cohort Study Using the Clinical Practice Research Datalink</p>	7
Glucocorticoids and Risk of Venous Thromboembolism in Asthma Patients Aged 20–59 Years in the United Kingdom’s CPRD 1995–2015	7
Psychological Distress and All-Cause, Cardiovascular Disease, Cancer Mortality Among Adults with and without Diabetes	7
Temporal Trends and Projections of Bladder Cancer Burden in China from 1990 to 2030: Findings from the Global Burden of Disease Study	7
Prediction Ability of Charlson, Elixhauser, and Rx-Risk Comorbidity Indices for Mortality in Patients with Hip Fracture. A Danish Population-Based Cohort Study from 2014 – 2018	6
Vesicoureteral Reflux in Children with Urinary Tract Infections in the Inpatient Setting in Taiwan	6
Trends in Antibiotic Use in Danish, Finnish, Norwegian and Swedish Children	6
<p>Detection of Glaucoma and Other Vision-Threatening Ocular Diseases in the Population Recruited at Specific Health Checkups in Japan</p>	6
Elevated Uric Acid Mediates the Effect of Obesity on Hypertension Development: A Causal Mediation Analysis in a Prospective Longitudinal Study	6
Trends in the Annual Consultation Incidence and Prevalence of Low Back Pain and Osteoarthritis in England from 2000 to 2019: Comparative Estimates from Two Clinical Practice Databases	6
Prediction of Early Periprosthetic Joint Infection After Total Hip Arthroplasty	6
High Completeness and Accurate Reporting of Key Variables Make Data from the Danish Shoulder Arthroplasty Registry a Valuable Source of Information	6
Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study	6
Second Primary Cancers After Liver, Gallbladder and Bile Duct Cancers, and These Cancers as Second Primary Cancers	6
<p>Home-Time as a Surrogate Measure for Functional Outcome After Stroke: A Validation Study</p>	6
<p>Geographical and sociodemographic differences in discontinuation of medication for Chronic Obstructive Pulmonary Disease – A Cross-Classified Multilevel Analysis of Individual Heterogeneity a	6
Association of Sleep Duration, Midday Napping with Atrial Fibrillation in Patients with Hypertension	6
Profiling Bispebjerg Acute Cohort: Database Formation, Acute Contact Characteristics of a Metropolitan Hospital, and Comparisons to Urban and Rural Hospitals in Denmark	6
Routine Clinical Care Creatinine Data in Denmark – An Epidemiological Resource for Nationwide Population-Based Studies of Kidney Disease	6
Validation of Stroke Risk Factors in Patients with Acute Ischemic Stroke, Transient Ischemic Attack, or Intracerebral Hemorrhage on Taiwan’s National Health Insurance Claims Data	6
<p>Impact of Being Eligible for Type 2 Diabetes Treatment on All-Cause Mortality and Cardiovascular Events: Regression Discontinuity Design Study</p>	6
<p>Low Incidence of Maternal Near-Miss in Zhejiang, a Developed Chinese Province: A Cross-Sectional Study Using the WHO Approach</p>	6
Kidney Disease Cohort (KidDiCo) of Southern Denmark: Design, Coverage, Generalizability and Implications for Use	6
Differences in Classification Standards For the Prevalence of Overweight and Obesity in Children. A Systematic Review and Meta-Analysis	6
<p>Risk of Anemia in Patients with Newly Identified Chronic Kidney Disease – A Population-Based Cohort Study</p>	6
<p>The Association Between Rhabdomyolysis, Acute Kidney Injury, Renal Replacement Therapy, and Mortality</p>	6
Lifestyle in Pregnancy and Hypospadias in Sons: A Study of 85,923 Mother-Son Pairs from Two Danish Pregnancy Cohorts	6
Validation of Register-Based Diabetes Classifiers in Danish Data	6
Validation of ICD-9-CM and ICD-10-CM Diagnostic Codes for Identifying Patients with Out-of-Hospital Cardiac Arrest in a National Health Insurance Claims Database	6
<p>Registrations of Patients with Renal Cell Carcinoma in the Nationwide Danish Renal Cancer Database versus the Danish Cancer Registry: Data Quality, Completeness and Survival (DaRenCa Study-3)	6
Second Primary Cancers After Gastric Cancer, and Gastric Cancer as Second Primary Cancer	6
Estimating the Future Burden of Myocardial Infarction in France Until 2035: An Illness-Death Model-Based Approach	6
<p>Co-Morbidity Patterns Identified Using Latent Class Analysis of Medications Predict All-Cause Mortality Independent of Other Known Risk Factors: The COPDGene<sup>®</sup> Study<	6

Prognostic Factors and a Nomogram Predicting Survival in Patients with Breast Ductal Carcinoma in situ with Microinvasion: A Population-Based Study	5
<p>Statistical Challenges in Development of Prognostic Models in Diffuse Large B-Cell Lymphoma: Comparison Between Existing Models – A Systematic Review</p>	5
<p>Socioeconomic Inequalities in Colorectal Cancer Survival in Southern Spain: A Multilevel Population-Based Cohort Study</p>	5
<p>Trend Dynamics of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Transmission in 16 Cities of Hubei Province, China</p>	5
<p>Individual Antidepressants and the Risk of Fractures in Older Adults: A New User Active Comparator Study</p>	5
A Validated Register-Based Algorithm to Identify Patients Diagnosed with Recurrence of Malignant Melanoma in Denmark	5
<p>Positive Predictive Value of Benign Prostatic Hyperplasia and Acute Urinary Retention in the Danish National Patient Registry: A Validation Study</p>	5
Global Patterns and Trends in Total Burden of Hepatitis B from 1990 to 2019 and Predictions to 2030	5
Identification of Drugs Associated with Lower Risk of Parkinson’s Disease Using a Systematic Screening Approach in a Nationwide Nested Case–Control Study	5
Maternal Multiple Sclerosis and Health Outcomes Among the Children: A Systematic Review	5
The Danish Myelodysplastic Syndromes Database: Patient Characteristics and Validity of Data Records	5
<p>The Occurrence of Metabolic Risk Factors Stratified by Psoriasis Severity: A Swedish Population-Based Matched Cohort Study</p>	5
Deep Learning in Prediction of Late Major Bleeding After Transcatheter Aortic Valve Replacement	5
<p>Feasibility Study of Advanced Cardiovascular Screening in Middle-Aged Patients with Diabetes</p>	5
Association Between Serum Uric Acid and Non-Alcoholic Fatty Liver Disease: An Updated Systematic Review and Meta-Analysis	5
<p>Handling Missing Values in Interrupted Time Series Analysis of Longitudinal Individual-Level Data</p>	5
Risk Scoring Systems Including Electrolyte Disorders for Predicting the Incidence of Acute Kidney Injury in Hospitalized Patients	5
Disease Burden of Glaucoma in China: Findings from the Global Burden of Disease 2019 Study	5
Positive Predictive Value of ICD-10-CM Codes for Myocarditis in Claims Data: A Multi-Institutional Study in Taiwan	5
<p>Using the Causal Inference Framework to Support Individualized Drug Treatment Decisions Based on Observational Healthcare Data</p>	5
<p>Comprehensive Trends and Patterns of Antihypertensive Prescriptions Using a Nationwide Claims Database in Korea</p>	5
Cohort Description: Preventing an Opioid Epidemic in Norway – Focusing on Treatment of Chronic Pain (POINT) – A National Registry-Based Study	5
Maternal Smoking During Pregnancy and Offspring Head Growth in Comparison to Height and Weight Growth Up to 6 Years of Age: A Longitudinal Study	5
The Epidemiology of Bile Acid Diarrhea in Denmark	5
<p>Morbidity as a Predictor for Participation in the Danish National Mammography Screening Program: A Cross-Sectional Study</p>	5
A Framework for Visualizing Study Designs and Data Observability in Electronic Health Record Data	5
Cancer and SARS-CoV-2 Infection: A Third-Level Hospital Experience	5
The Danish Diabetes Musculoskeletal Cohort: Non-Responder Analysis of an Electronic Survey Using Registry Data	5
Oncology Simulation Model: A Comprehensive and Innovative Approach to Estimate and Project Prevalence and Survival in Oncology	4
<p>Excess Body Weight and Incidence of Type 1 and Type 2 Endometrial Cancer: The Norwegian Women and Cancer Study</p>	4
Incidence of Carpal Tunnel Syndrome Requiring Surgery May Increase in Patients Treated with Trigger Finger Release: A Retrospective Cohort Study	4
<p>Alanine Aminotransferase and 20-Year Risk of Major Chronic Diseases and Death in a Healthy Cohort Aged 30 to 49 Years</p>	4
High Depressive Symptoms in Previously Undetected Diabetes – 10-Year Follow-Up Results of the Heinz Nixdorf Recall Study	4
Nausea During Pregnancy and Timing of Pubertal Development in Sons and Daughters: A Population-Based Cohort Study	4
The Effect of Osteoporosis Medication on Risk Attenuation of Non-Trauma Fracture Among Adults with Cerebral Palsy: A Propensity Score-Matched Observational Study	4
Increased Risk of Anemia in Patients with Asthma	4
Development and Validation of Algorithms to Identify COVID-19 Patients Using a US Electronic Health Records Database: A Retrospective Cohort Study	4
Association Between Single-Nucleotide Polymorphisms in Breast Cancer Susceptibility Genes and Clinicopathological Characteristics	4
Association Between Autoimmune Diseases and Sarcopenia: A Two-Sample Mendelian Randomization Study	4
The Efficacy of Assisted Reproduction in Women with a Wide Spectrum of Chronic Diseases – A Review	4
Reproductive Factors, Use of Exogenous Hormones, and Pancreatic Cancer Incidence: The Norwegian Women and Cancer Study	4
Agreement Between Standard and ICD-10-Based Injury Severity Scores	4
Maternal Cigarette Smoking During Pregnancy and Genital Anomalies in Boys: A Register-Based Cohort and Sibling-Matched Design Study	4
Assessing the Validity and Cover Rate of the National Swedish Hernia Register	4
<p>Incidence Differences Between First Primary Cancers and Second Primary Cancers Following Skin Squamous Cell Carcinoma as Etiological Clues</p>	4
Time to Cure and Predictors of Recovery Among Children Aged 6–59 Months with Severe Acute Malnutrition Admitted in Jimma University Medical Center, Southwest Ethiopia: A Retrospective Cohort Study	4
<p>Meta-Analyses Proved Inconsistent in How Missing Data Were Handled Across Their Included Primary Trials: A Methodological Survey</p>	4
Trajectories in Outpatient Care for People with Multimorbidity: A Population-Based Register Study in Denmark	4
Mapping Outcomes and Registries Used in Current Danish Pharmacoepidemiological Research	4
Population-Based Multilevel Models to Estimate the Management Strategies for Acute Myocardial Infarction in Older Adults with Dementia	4
The Interaction Effect Between Previous Stroke and Hip Fracture on Postoperative Mortality: A Nationwide Cohort Study	4
<p>Methods for Measuring the Time of Transfer from Pediatric to Adult Care for Chronic Conditions Using Administrative Data: A Scoping Review</p>	4
<p>Digital Image Analysis of Ki-67 Stained Tissue Microarrays and Recurrence in Tamoxifen-Treated Breast Cancer Patients</p>	4
High Validity of the Danish National Patient Registry for Systemic Anticancer Treatment Registration from 2009 to 2019	4
Association Between Serum Total Bilirubin and COPD: Results from a Cross-Sectional Study and a Bidirectional Mendelian Randomization Analysis	4
Venous Thromboembolism and Risk of Cancer in Patients with Diverticular Disease: A Danish Population-Based Cohort Study	4
Chronic Inflammatory Diseases – Diabetes Mellitus, Rheumatoid Arthritis, Coeliac Disease, Crohn’s Disease, and Ulcerative Colitis Among the Offspring of Affected Parents: A Danish Population-Based Reg	4
Albumin Level is Associated with Short-Term and Long-Term Outcomes in Sepsis Patients Admitted in the ICU: A Large Public Database Retrospective Research	4
Agreement Between Self-Reported Information and Administrative Data on Comorbidities, Imaging and Treatment in Denmark – A Validation Study of 38,745 Patients with Knee or Hip Osteoarthritis	4
<p>The Validity of Registered Synchronous Peritoneal Metastases from Colorectal Cancer in the Danish Medical Registries</p>	4
<p>Evaluating the Effectiveness of an Additional Risk Minimization Measure to Reduce the Risk of Prescribing Mirabegron to Patients with Severe Uncontrolled Hypertension in Four European Countri	4
Development and Validation of a Clinical Prognostic Risk Score to Predict Early Neonatal Mortality, Ethiopia: A Receiver Operating Characteristic Curve Analysis	4
Antidepressant Fill and Dose Trajectories in Pregnant Women with Depression and/or Anxiety: A Norwegian Registry Linkage Study	3
<p>Platelet Count within the Normal Range at Hospital Admission is Associated with Mortality in Patients with Community-Acquired Pneumonia</p>	3
High Perceived Stress and Low Self-Efficacy are Associated with Functional Somatic Disorders: The DanFunD Study	3
The Long-Term Impact of Vaginal Surgical Mesh Devices in UK Primary Care: A Cohort Study in the Clinical Practice Research Datalink	3
The Risk of Gout in Patients with Psoriasis: A Population-Based Cohort Study in Taiwan	3
Prediagnostic Serum 25-Hydroxyvitamin D and Mortality Among Bladder Cancer Patients in the Janus Serum Bank Cohort	3
Index-Based Inequality in Quality of Care: An Empirical Comparison of Apples and Pears	3
<p>Validity of an Automated Algorithm to Identify Cirrhosis Using Electronic Health Records in Patients with Primary Biliary Cholangitis</p>	3
<p>A Novel Method for Quantifying Intestinal Inflammatory Burden in Inflammatory Bowel Disease Using Register Data</p>	3
Validation of Discharge Diagnosis of Sickle Cell Disease Vaso-Occlusive Episodes in the French Hospital Electronic Database	3
<p>Determinants of Health Status After Stroke: A Cohort Study with Repeated Measurements</p>	3
Presence of Breast Cancer Information Recorded in United Kingdom Primary Care Databases: Comparison of CPRD Aurum and CPRD GOLD (Companion Paper 1)	3
<p>Erectile Dysfunction After Surgical Treatment of Lung Cancer: Real-World Evidence</p>	3
Factors Affecting Future Caries Occurrence Among Preschoolers in Northern Guangdong: A Longitudinal Study	3
Modeling the Transmission Dynamics of COVID-19 Among Five High Burden African Countries	3
Elucidating Pathways Mediating the Relationship Between Male Sex and COVID-19 Severity	3
Risk of Obesity Among Children Aged 2–6 Years Who Had Prolonged Screen Time in Taiwan: A Nationwide Cross-Sectional Study	3
Temporal Trends of Inflammatory Bowel Disease Burden in China from 1990 to 2030 with Comparisons to Japan, South Korea, the European Union, the United States of America, and the World	3
Using Machine Learning to Identify Patients at High Risk of Inappropriate Drug Dosing in Periods with Renal Dysfunction	3
Burden of Respiratory Infection and Tuberculosis Among US States from 1990 to 2019	3
Perinatal Mental Illness and Risk of Incident Autoimmune Disease: A Population-Based Propensity-Score Matched Cohort Study	3
Inequities in Mental Health Care Quality and Clinical Outcomes Among Inpatients with Depression Within a Tax-Financed Universal Health Care System	3
Avoiding Time-Related Biases: A Feasibility Study on Antidiabetic Drugs and Pancreatic Cancer Applying the Parametric g-Formula to a Large German Healthcare Database	3
Indirect Comparisons via Sorafenib for the Comparative Effectiveness of Two PD-1/PD-L1 Inhibitors to Treat Advanced Hepatocellular Carcinoma Patients without Prior Systemic Therapies	3
A Novel Chronic Kidney Disease Phenotyping Algorithm Using Combined Electronic Health Record and Claims Data	3
Effect of Pharmacological and Neurostimulation Interventions for Cognitive Domains in Patients with Bipolar Disorder: A Systematic Review and Network Meta-Analysis of Randomized Controlled Trials	3
<p>Autoimmune Connective Tissue Disease Following Carbon Monoxide Poisoning: A Nationwide Population-Based Cohort Study</p>	3
Prevalence and Associated Diseases of Seborrheic Skin in Adults	3
Validation of Pediatric Idiopathic Generalized Epilepsy Diagnoses from the Danish National Patient Register During 1994‒2019	3
Positive Predictive Value of Non-Traumatic Bleeding Diagnoses in the Danish National Patient Register	3
<p>The Population Prevalence, Associations of Congenital Heart Defect and Mortality Risk for Down’s Syndrome in South Korea Based on National Health Insurance Service (NHIS) Data</p>	3
<p>Validity of First-Time Diagnoses of Inherited Ichthyosis in the Danish National Patient Registry and the Danish Pathology Registry</p>	3
Fat Embolism Syndrome and in-Hospital Mortality Rates According to Patient Age: A Large Nationwide Retrospective Study	3