ReviewClinical epidemiology2025
Mental Disorders in Danish Hospital Registers: A Review of Content and Possibilities for Epidemiological Research.
Review in Clinical epidemiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Interaction between mental health conditions and hip fracture on the 30-day risk of infection among older adults: a Danish matched cohort study.European geriatric medicine · 2026Article
- Changes in incidence of hospital diagnoses of mental disorders among children and adolescents over the past 3 decades.BMJ mental health · 2026Article
- Social Disparity and Treatment-Seeking in Eating Disorders During Childhood and Adolescence: A Nationwide Population-Based Cohort Study.JAACAP open · 2026Article
- The PROTECT databank a population based linked administrative resource on child maltreatment and intellectual disability with early findings.Scientific reports · 2026Article
- Real-world effectiveness of antipsychotic treatment of functional outcomes over 10 years: A national cohort of patients in Denmark with schizophrenia.Psychological medicine · 2026Article
- Time Trends in the Prevalence of Hospital-Diagnosed Chronic Diseases Among Stage I-IV Colorectal Cancer Patients in Denmark (2002-2021): A Population-Based Cross-Sectional Study.Cancer medicine · 2026Article
- Social disconnection and subsequent mental disorders: a population-based cohort study.Social psychiatry and psychiatric epidemiology · 2026Article
- School entry health examinations by school nurses for early detection of psychiatric disorders: a prospective cohort study.Child and adolescent psychiatry and mental health · 2026Article
- Quantifying the contribution of social disconnection to the mortality gap associated with mental disorders: a decomposition analysis.European journal of epidemiology · 2026Article
- Classification of Inpatient and Outpatient Contacts in the Danish National Patient Register: Epidemiological Implications and Future Directions.Clinical epidemiology · 2026Article
- The Cumulative Risk of Having a Family Member With a Diagnosed Mental Disorder: A Nationwide Study of Mental Disorders in Family Networks.Acta psychiatrica Scandinavica · 2026Article
- Impact of Washout Duration to Account for Left Truncation in Register-based Epidemiologic Studies: Estimating the Risk of Mental Disorders.Epidemiology (Cambridge, Mass.) · 2025Article
- Developmental trajectories in mental health through adolescence and adulthood: does socio-economic status matter?Epidemiology and psychiatric sciences · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The Danish national hospital registers are a rich source of data for psychiatric epidemiology. The potential to identify diagnosed mental disorders in the Danish population has resulted in a plethora of important research studies. However, no recent review of these research sources exists. Objective: To review the content, data quality and epidemiological considerations regarding mental disorders in the Danish hospital registers. Methods: We provide information on the setting, history, and data access regarding mental disorders in the Danish hospital registers (defined according to the International Classification of Diseases, Tenth Revision, F group Mental and behavioural disorder codes). We describe the registration of mental disorders over time in the Danish hospital registers, by providing counts of individuals diagnosed with mental disorders each year, by types of mental disorders, diagnosis, hospital contact, and contact unit. We also provide information on considerations when using these data sources, including data quality. For this, we searched PubMed to identify validation studies of coding of mental disorder diagnoses. Results: Between 1969 and 2022, 1,136,280 individuals (10.7% of all individuals who resided in Denmark in this period) have been registered as having a mental disorder as a primary or secondary diagnosis in a psychiatric unit in Denmark at least once. The type of contact and unit diagnoses were made in varied by mental disorder type. The literature indicates that a large proportion of coded diagnoses in the Danish hospital registers of mental disorders were considered valid. Conclusion: We provide an overview of the available data for investigating mental disorders in the Danish hospital registers. We raise awareness of the limitations researchers should be aware of when using this data and discuss their implications. Careful consideration should be given to these during study design and when reporting findings from register-based studies on diagnosed mental disorders.
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