Health databases & datasets: Nordic

HDB-0112

Danish National Patient Registry (Landspatientregisteret)

Danish Health Data Authority (Sundhedsdatastyrelsen) The Danish National Patient Registry contains data on all hospital admissions, diagnoses coded in ICD-10, procedures coded in NOMESCO, and treatments in Denmark since 1977, covering both psychiatric and non-psychiatric inpatient care as well as emergency and outpatient specialty visits since 1995. Access for research is granted through application to the Danish Health Data Authority, which manages the registry as part of a broader health data system covering operations, diagnoses, births, causes of death, and medicines. Research database By application HDB-0113

Danish Civil Registration System (Det Centrale Personregister)

Ministry for Economic Affairs and the Interior (Denmark) The Danish CPR is a national register established in 1968 that maintains civil registration numbers, names, addresses, birth records, citizenship, church affiliation, parentage, and marital status for all Danish residents and Greenlandic citizens. Data is accessible to government agencies, businesses, organizations, and research institutions through data purchase arrangements, and individuals can request access to their own records. Research database Credentialed HDB-0114

Statistics Denmark

Statistics Denmark (Danmarks Statistik) Statistics Denmark is the central authority on Danish statistics that provides researchers and analysts access to a wide range of pseudonymised microdata about Danish society through its digital platform (DDP App). Authorised institutions can submit project proposals for approval to access microdata for research and analysis purposes. Research database Credentialed HDB-0115

Swedish National Patient Register (Nationella Patientregistret)

Socialstyrelsen (National Board of Health and Welfare, Sweden) The Swedish National Patient Register contains data on all inpatient hospital episodes since 1964 and outpatient specialist care visits, day surgery, and psychiatric care since 2001, including diagnoses, procedures, and administrative information. Access for research requires approval from the Swedish Ethical Review Authority following a formal application process. Research database By application HDB-0116

Swedish Prescribed Drug Register (Läkemedelsregistret)

Socialstyrelsen (National Board of Health and Welfare, Sweden) The Swedish Prescribed Drug Register contains records of all prescribed drugs dispensed in Swedish pharmacies since July 2005, with over 100 million entries annually, including patient age, sex, unique identifier, prescriber information, and dispensation details. The register is updated monthly and used by researchers, public agencies, journalists, and pharmaceutical industry representatives to study prescription patterns and drug safety. Research database By application HDB-0117

Norwegian Patient Registry (Norsk Pasientregister)

Norwegian Institute of Public Health (NIPH) The Norwegian Patient Registry contains information on all individuals who have received or are waiting to receive treatment in the specialist health service since 2008, including administrative, medical, and social information about healthcare episodes. Data access for research and other purposes requires submission of an application form to the Norwegian Institute of Public Health. Research database By application HDB-0118

Norwegian Prescribed Drug Registry (Legemiddelregisteret)

Norwegian Institute of Public Health (FHI) The Norwegian Prescribed Drug Registry is the successor to the Norwegian Prescription Database (NorPD) and contains records of all prescription drugs dispensed in Norwegian pharmacies since 2004, anonymised and pseudonymised for research use. Applications for research data access must be submitted to the Norwegian Institute of Public Health. Research database By application HDB-0119

FinnGen

FinnGen (public-private partnership) FinnGen is a large research project that has collected genome and longitudinal health data from over 500,000 Finnish biobank participants (approximately 10% of Finland's population), comprising more than 21.3 million genetic variants and over 2,750 health endpoints. Genome-wide association study (GWAS) results are publicly available for browsing and download, while complete dataset access is available to researchers at Finnish universities and university hospitals. Research database Free registration HDB-0120

Findata (Finnish Social and Health Data Permit Authority)

Findata (Finland) Findata is the Finnish authority that grants permits for the secondary use of health and social care data from multiple public and private data controllers, providing researchers access to pseudonymised registry data through a formal permit application process that typically requires 2-4 months for decision. The authority also pre-processes approved datasets and offers analytical tools for approved research uses. Research database By application HDB-0121

NORDCAN (Nordic Cancer Statistics Database)

Association of Nordic Cancer Registries (ANCR) and International Agency for Research on Cancer (IARC) NORDCAN is a web-based tool providing cancer statistics from Nordic countries (Denmark, Finland, Iceland, Norway, Sweden, Faroe Islands, and Greenland) including incidence, mortality, survival, and prevalence data spanning up to 70 years, with the earliest records from Denmark's National Cancer Registry established in 1943. Data is updated annually and presented as anonymous, privacy-protected statistics that can be compared across countries, regions, cancer types, and demographic groups. Research database Open access HDB-0388

Finnish Cancer Registry (Syöpärekisteri)

Cancer Society of Finland Registry of all diagnosed cancer cases in Finland since 1953, maintained by the Cancer Society of Finland for epidemiological research. Provides cancer incidence statistics, survival data, and screening program information accessible to researchers through application. Research database Credentialed HDB-0389

Danish National Hospital Medication Register

Danish Health Data Authority Records medication use in all Danish public hospitals and outpatient clinics from 2018 onward, including indication, drug type, pharmaceutical form, dosage, and administration details. Complements the Danish Prescription Registry by providing hospital medication data. Research database By application HDB-0390

Icelandic Cancer Registry

Icelandic Directorate of Health Population-based cancer registry maintained by Iceland's Directorate of Health since 1954, registering all cancer diagnoses according to international standards. Data available to researchers through application to the Directorate's scientific research committee. Research database By application HDB-0437

National Medical Birth Register

Socialstyrelsen (Swedish National Board of Health and Welfare) The Medical Birth Register covers all pregnancies resulting in childbirth in Sweden since 1973, recording data on pregnancies, labor, deliveries, and newborn health. Access to individual-level data is available to researchers and statistics users through the Swedish National Board of Health and Welfare. Open dataset Credentialed HDB-0438

Medical Birth Registry of Norway

Norwegian Institute of Public Health (NIPH) The Medical Birth Registry of Norway (MBRN) was established in 1967 and registers all births in Norway, collecting data on pregnancies, births, maternal and child health, and congenital abnormalities. Researchers can apply for access to individual-level data through helsedata.no. Open dataset By application HDB-0440

Register of Causes of Death

Danish Health Data Authority Denmark's Register of Causes of Death has recorded all deaths in Denmark since 1875, with computerized individual records since 1970, containing data on time of death and underlying causes coded to ICD. Access for research is administered through the Danish Health Data Authority. Open dataset By application HDB-0441

National Cause of Death Register

Socialstyrelsen (Swedish National Board of Health and Welfare) The National Cause of Death Register provides the basis for official cause-of-death statistics in Sweden, recording all deaths since 1952 with complete nationwide coverage. The register is highly valued for epidemiological research as it can be linked to other Swedish national health registers. Open dataset Credentialed HDB-0442

Cause of Death Registry

Norwegian Institute of Public Health (NIPH) The Norwegian Cause of Death Registry contains digitized cause of death data dating back to 1951, with standardized coding of underlying causes using automated IRIS software since 2011. Statistics are available from an online database and researchers can request microdata access through NIPH. Open dataset By application HDB-0443

Danish Cancer Registry

Danish Health Data Authority The Danish Cancer Registry is a population-based register containing incidence data on all cancers diagnosed in Denmark since 1943, with mandatory reporting since 1987. Data is used for cancer epidemiology, health monitoring, and linked research with other Danish health registers. Open dataset By application HDB-0444

Cancer Registry of Norway

Norwegian Institute of Public Health (NIPH) One of the oldest national cancer registries, established in 1951, the Norwegian Cancer Registry collects mandatory data on all cancer cases in Norway. It maintains public cancer screening programmes and operates as a quality register for cancer care. Open dataset By application HDB-0445

Care Register for Health Care

Finnish Institute for Health and Welfare (THL) Finland's Care Register (Hilmo) is a mandatory nationwide data collection system covering hospital inpatient and outpatient care since 1967, plus primary health care visits since 2011. Researchers can access individual-level data through Findata, which serves as the authorized data access gateway. Open dataset By application HDB-0446

Danish Twin Registry

Danish Twin Research Center, University of Southern Denmark The Danish Twin Registry, established in 1954, is a nationwide twin registry covering twin births across more than a century of Danish records. The registry links to other Danish national registers and supports research into the genetic and environmental determinants of health. Open dataset Credentialed HDB-0447

Danish National Prescription Registry

Danish Medicines Agency (Lægemiddelstyrelsen) The Danish National Prescription Registry contains individual-level data on all prescription drugs dispensed at Danish community pharmacies since 1994, with automated bar-code data entry ensuring high quality. The registry is widely used in pharmacoepidemiology to study medication use patterns and drug safety. Open dataset By application HDB-0448

Norwegian Immunisation Registry SYSVAK

Norwegian Institute of Public Health (NIPH) SYSVAK is Norway's national electronic immunisation registry recording individual vaccination status and coverage since 1995, with mandatory notification based on personal identification numbers. The registry tracks childhood, influenza, and COVID-19 vaccinations with daily updated statistics. Open dataset By application HDB-0449

Multi-Generation Register

Statistics Sweden (SCB) Sweden's Multi-Generation Register contains data on more than nine million individuals with family relationships, recording connections between biological and adoptive parents and children for those born from 1932 onwards. The register enables demographic and epidemiological research on familial patterns and intergenerational health outcomes. Open dataset Credentialed HDB-0450

Riksstroke

Swedish National Quality Register, Norrlands University Hospital Riksstroke is Sweden's national quality register for stroke care, collecting data on all acute stroke patients from 71 participating hospitals with standardized clinical indicators and long-term outcomes. The registry has been operational since 1994 and provides feedback to healthcare professionals, decision-makers, and the public on stroke care quality and treatment results. Research database Credentialed HDB-0451

SWEDEHEART

Uppsala Clinical Research Center, Swedish Healthcare System SWEDEHEART is Sweden's national registry for acute coronary syndrome, heart failure, arrhythmias, cardiac surgery, and transcatheter interventions,000 new admissions annually. The registry provides real-time feedback to clinicians, enables outcome tracking across Swedish hospitals, and supports quality improvement and research. Research database Credentialed HDB-0452

Swedish Arthroplasty Register (SAR)

Register Centre, Gothenburg The Swedish Arthroplasty Register is a merger of two national quality registers tracking all knee and hip replacements in Sweden since 1975 and 1979 respectively. The register provides long-term follow-up of surgical outcomes, revision rates, and implant performance, with patient-reported outcome measures collected preoperatively and at multiple postoperative intervals. Research database Credentialed HDB-0453

Swedish Rheumatology Quality Register (SRQ)

Swedish Rheumatology Quality Register Association The SRQ is a nationwide quality register for rheumatic diseases including rheumatoid arthritis, axial spondyloarthritis, and psoriatic arthritis. The register collects clinical data on disease activity, treatment, outcomes, and patient-reported measures including pain, function, and quality of life through an interactive patient portal. Research database Free registration HDB-0454

Swedish Cohort Consortium (Cohorts.se)

Uppsala Clinical Research Center, Swedish research institutions The Swedish Cohort Consortium is a national infrastructure coordinating all Swedish prospective population-based cohorts to enhance research utility and data sharing. The consortium enables harmonized data management, variable cataloguing, and collaborative research across multiple Swedish longitudinal studies involving hundreds of thousands of participants. Open dataset By application HDB-0455

RKKP (Danish Clinical Quality Registries)

Danish Health Quality Institute (Sundhedsvæsenets Kvalitetsinstitut) RKKP manages disease-specific and procedure-specific clinical quality databases covering all patients with specified diagnoses or procedures in Danish hospitals, with mandatory participation for clinical quality monitoring. The registries collect detailed clinical data on diagnoses, treatments, outcomes, and adverse events for quality improvement and research purposes. Research database Credentialed HDB-0456

DANBIO

Department of Rheumatology, Copenhagen University Hospital DANBIO is Denmark's nationwide clinical quality register for rheumatoid arthritis and other inflammatory arthropathies, collecting data since 2000 on patients. The registry records disease activity, treatments with biological and conventional drugs, adverse events, and patient-reported outcomes through both clinical visits and remote patient portals. Research database Credentialed HDB-0458

MoBa (Norwegian Mother, Father and Child Cohort Study)

Norwegian Institute of Public Health (NIPH) MoBa is a population-based pregnancy cohort recruited across Norway between 1999 and 2008, holding questionnaire data and biological samples from mothers, fathers and children, run by the Norwegian Institute of Public Health. Researchers apply to the institute for access to the data for approved studies. Research database By application HDB-0459

HUNT Study (Trøndelag Health Study)

HUNT Research Centre, Norwegian University of Science and Technology (NTNU) The HUNT Study is a population health study covering adult residents of Trøndelag County in Norway, with data collected since 1984 across four survey waves. It combines questionnaire data, clinical measurements and biological samples, and researchers apply to the HUNT Research Centre for access. Research database By application HDB-0460

Norwegian Quality Registries (Medical Quality Registers)

SKDE (Norwegian Centre for Quality Improvement of Health Services) Norway maintains 53 national medical quality registries covering disease-specific and procedure-specific care, each collecting detailed clinical data to monitor treatment quality and improve patient outcomes. The registries provide standardized outcome reporting and comparative data across hospitals through the health atlas portal. Research database Credentialed HDB-0461

Norwegian Stroke Registry

Norwegian Institute of Public Health The Norwegian Stroke Registry is a mandatory nationwide quality registry for all patients hospitalized with acute stroke in Norway. The registry collects standardized data on stroke type, interventions, complications, and outcomes, with results publicly reported through the national quality registry portal. Research database Credentialed HDB-0465

Northern Finland Birth Cohort 1966 (NFBC1966)

University of Oulu, Faculty of Medicine The NFBC1966 is a longitudinal birth cohort of children born in northern Finland in 1966, with follow-up data collected from childhood through adulthood (now age 60). The study contains detailed health examination data, clinical measurements, questionnaire information on lifestyle and environmental factors, and biological samples, with long-term outcomes linked to national health registers. Research database By application HDB-0526

Danish Medical Birth Register (Fødselsregisteret)

Danish Health Data Authority (Sundhedsdatastyrelsen) The Danish Medical Birth Register contains information on all hospital births and home births in Denmark, including the course and outcome of delivery and any complications, and is maintained by the Danish Health Data Authority. It serves as a national health indicator source and supports medical research, with data access granted through the authority's research service (Forskerservice). Research database By application HDB-0527

Danish Register of Causes of Death (Dødsårsagsregisteret)

Danish Health Data Authority (Sundhedsdatastyrelsen) The Danish Register of Causes of Death collects information on all deaths in Denmark and is operated by the Danish Health Data Authority. It is used for research, analysis and surveillance, and researchers request access through the authority's research service. Research database By application HDB-0528

Swedish National Quality Registries

Swedish Association of Local Authorities and Regions (SALAR/SKR) and the Swedish quality registry community The Swedish National Quality Registries are a system of individual-based registries that collect diagnosis, intervention and outcome data across many areas of Swedish health care, coordinated nationally with support from SALAR/SKR. They are used for continuous quality improvement, benchmarking and research, and access to data is handled by each individual registry on application. Research database By application HDB-0539

THL Biobank

Finnish Institute for Health and Welfare (THL) THL Biobank is a centralized repository hosting biological samples (DNA, plasma, serum, RNA, cells) from Finnish participants collected through population-based cohorts, disease-specific collections, and nationally significant sample collections. The biobank provides access to multiple national cohorts including FINRISK, Health 2000/2011, and disease-specific collections with associated health and lifestyle data. Open dataset By application