Health databases & datasets: Global

HDB-0010

WHO Global Health Observatory

World Health Organization The WHO's repository of health indicators for its member states: mortality, disease burden, health systems, environmental health and more, with an open OData API. The starting point for cross-country health comparisons. Open dataset Open access HDB-0011

ClinicalTrials.gov

US National Library of Medicine The world's largest registry of clinical studies, spanning interventional trials and observational studies in 200+ countries, with protocols, eligibility criteria and posted results. Fully open with a modern REST API. Research database Open access HDB-0012

PubMed / MEDLINE

US National Library of Medicine The primary index of biomedical literature: 37M+ citations with abstracts, MeSH indexing and links to full text. Free to search, with E-utilities APIs and annual baseline downloads for text mining. Research database Open access HDB-0014

IQVIA Real-World Data

IQVIA Holdings Inc. The largest commercial healthcare data organization, offering longitudinal prescription, claims and EHR-derived real-world data across dozens of countries, plus analytics and consulting. The default enterprise choice for pharma commercial analytics and real-world evidence. Commercial provider Paid HDB-0024

H1

H1 Inc. H1 is a global healthcare data and intelligence platform that aggregates information on millions of healthcare professionals, clinical trials, patient recruitment data, and prescriber insights across 6 continents. The platform serves pharmaceutical, payer, provider, and digital health organizations for sales, marketing, clinical development, and compliance workflows through subscription and licensing agreements. Commercial provider By application HDB-0025

ZoomInfo Healthcare Solutions

ZoomInfo ZoomInfo is a B2B data and intelligence platform that maintains verified contact information and profiles for healthcare professionals, organizations, and decision-makers across the healthcare and life sciences sectors. The platform is used by pharmaceutical companies, medical device manufacturers, and healthcare service providers for lead generation, sales prospecting, and marketing through paid subscription. Commercial provider Paid HDB-0026

Veeva OpenData

Veeva Systems Veeva OpenData is a cloud-based reference data solution that contains verified information on healthcare professionals, healthcare organizations, and their affiliations across 100+ countries. The platform serves life sciences companies for commercial operations, CRM integration, and compliance workflows through direct provisioning, API integration, or data file delivery. Commercial provider Paid HDB-0031

IQVIA OneKey

IQVIA IQVIA OneKey is a global healthcare professional and healthcare organization reference database containing information on approximately 25 million healthcare professionals and 6 million organizations across 117-118 countries. The platform serves the life sciences industry for commercial operations, sales, marketing, compliance, and analytics through commercial licensing agreements with data provisioned via direct access, API, or data files. Commercial provider Paid HDB-0032

Embase

Elsevier Biomedical abstract and indexing database containing 44+ million records from 8,100+ journals, conference abstracts, and clinical trials dating from 1947 to present. Designed for systematic reviews, drug safety monitoring, and evidence-based research; accessed through paid institutional subscriptions or individual access options. Research database Paid HDB-0033

Cochrane Library

Cochrane Curated collection of systematic reviews and meta-analyses synthesizing healthcare research, with all reviews available free after 12 months of publication. Supports evidence-based decision making through institutional subscriptions or free national provision access in 14+ countries. Research database Free registration HDB-0034

CINAHL

EBSCO Nursing and allied health literature index containing 1.25+ million records from 3,700+ journals, books, pamphlets, and dissertations. Provides CINAHL Subject Headings indexing with multiple product tiers offering varying levels of full-text access; accessed through institutional subscriptions or trials. Research database Paid HDB-0035

Scopus

Elsevier Multidisciplinary abstract and citation database indexing 100+ million records from journals, books, conference proceedings, and preprints across all research disciplines. Features AI-powered analytics and discovery tools; accessed through institutional subscriptions with free preview mode available to individuals. Research database Paid HDB-0036

Web of Science

Clarivate Citation-indexed research discovery platform covering 34,000+ journals with 278+ million records and 3.3+ billion citation links across 254 subject categories from 1864-present. Includes specialty databases for patents, dissertations, and preprints; accessed through institutional subscriptions only. Research database Paid HDB-0037

APA PsycInfo

American Psychological Association Behavioral and social sciences database indexing 6+ million peer-reviewed records from 2,400+ journals, books, and dissertations in 30 languages from 50 countries. Updated twice weekly with coverage spanning 600 years; accessed through institutional licenses or individual subscriptions with free 30-day trials available. Research database Paid HDB-0038

Europe PMC

EMBL-EBI Open biomedical literature repository developed by EMBL-EBI containing 48+ million articles, preprints, books, and theses from global sources. Freely accessible to anyone worldwide with REST APIs and bulk download capabilities; supported by 35 international research funders as an ELIXIR core data resource. Open dataset Open access HDB-0039

Trip Database

Trip (independent organization) Evidence-filtered medical search engine providing rapid access to clinical guidelines, systematic reviews, and primary research organized by research quality level. Offers free basic search and paid Trip Pro tier ($55/year individual or institutional licensing) with enhanced filtering and features. Research database Free registration HDB-0043

gnomAD (Genome Aggregation Database)

Broad Institute, Collaborators The Genome Aggregation Database is a resource of aggregated exome and whole-genome sequencing data containing over 241 million genetic variants from over 141,000 diverse individuals, curated by the Broad Institute and collaborators. Summary data are freely available without restrictions through the gnomAD browser, cloud storage, and programmatic interfaces. Open dataset Open access HDB-0044

IGSR / 1000 Genomes Project

European Molecular Biology Laboratory (EMBL), European Bioinformatics Institute The International Genome Sample Resource maintains human genetic variation data from the 1000 Genomes Project, including updated reference assemblies and new datasets, operated by EMBL-EBI. All data are openly accessible through the IGSR portal with searchable filtering tools for accessing samples by population and sequencing method. Open dataset Open access HDB-0054

ISIC Archive

International Skin Imaging Collaboration The ISIC Archive is a large open-source repository containing approximately 549,571 dermatological images of skin lesions including melanomas, nevi, and other skin conditions, with clinical and histological metadata. The archive supports algorithm development for melanoma detection and dermatological diagnosis through curated datasets and annual machine learning challenges. Open dataset Open access HDB-0055

OpenNeuro

Stanford Center for Reproducible Neuroscience OpenNeuro is a free, open-access repository for sharing human and non-human brain imaging data in standardized Brain Imaging Data Structure (BIDS) format, hosting over 600 datasets across multiple modalities including fMRI, structural MRI, EEG, MEG, and PET. Each dataset receives a persistent DOI and is released under Creative Commons CC0 license for maximum data reuse. Open dataset Open access HDB-0064

OECD Health Statistics

Organisation for Economic Co-operation and Development (OECD) OECD Health Statistics is a comprehensive database of health and health systems data maintained by the OECD, covering 35+ member countries. It provides comparable statistics on health expenditure, resources, services utilization, and key health indicators for policy analysis and research. Open dataset Open access HDB-0066

IHME Global Health Data Exchange (GHDx)

Institute for Health Metrics and Evaluation (IHME) The Global Health Data Exchange (GHDx) is IHME's catalog of health and demographic data, including estimates from the Global Burden of Disease study assessing mortality and disability from diseases and injuries globally. Access requires free registration and is available for non-commercial use under IHME's free-of-charge agreement. Open dataset Free registration HDB-0067

Human Mortality Database

UC Berkeley & Max Planck Institute for Demographic Research The Human Mortality Database (HMD) is a joint project providing detailed harmonized mortality and population data for 41 developed countries and regions. Data is openly available under open data principles and can be downloaded as files or accessed through country-specific interfaces and Excel tables. Open dataset Open access HDB-0068

The DHS Program

USAID / Avenir Health The DHS Program is a USAID-funded effort that conducts Demographic and Health Surveys across 90+ countries to collect data on population, health, and nutrition. Survey data is available free for academic research through the STATcompiler tool and downloadable datasets with free registration. Open dataset Free registration HDB-0069

Our World in Data - Health

University of Oxford (Oxford Martin Programme on Global Development) Our World in Data maintains a collection of global health datasets including life expectancy, disease burden, healthcare spending, and disease prevalence, drawn from WHO, World Bank, IHME, and UN agencies. Data is presented through interactive visualizations available under Creative Commons licensing. Open dataset Open access HDB-0072

SNOMED CT

SNOMED International SNOMED CT is a systematized nomenclature of medicine clinical terminology system maintained by SNOMED International, a non-profit organization. It provides standardized international multilingual clinical terminology used globally to code clinical findings, procedures, diagnoses, and medical concepts in healthcare systems. Terminology Credentialed HDB-0073

LOINC

Regenstrief Institute LOINC is an international standard for identifying health observations, measurements, and laboratory tests maintained by the Regenstrief Institute at Indiana University. It enables healthcare systems to identify, exchange, and aggregate clinical data using unique standardized codes for laboratory and clinical observations. Terminology Open access HDB-0075

WHO ICD-11

World Health Organization The International Classification of Diseases 11th Revision (ICD-11) is the global standard for diagnostic health information maintained by the World Health Organization. It provides a standardized system for classifying diseases, disorders, injuries, and health conditions used worldwide for healthcare management and clinical documentation. Terminology Open access HDB-0077

DrugBank

University of Alberta DrugBank is a comprehensive online database containing detailed information on drugs, drug targets, and drug interactions created and maintained by the University of Alberta and The Metabolomics Innovation Centre in Canada. It provides structured biomedical knowledge on approved and experimental drugs used by researchers for drug discovery and pharmacology research. Terminology Free registration HDB-0078

WHO ATC/DDD Index

WHO Collaborating Centre for Drug Statistics Methodology The Anatomical Therapeutic Chemical (ATC) Classification System and Defined Daily Dose (DDD) system is maintained by the WHO Collaborating Centre for Drug Statistics Methodology hosted by the Norwegian Institute of Public Health. It provides an international standard system for classifying drugs and measuring medication usage in drug utilization research and monitoring. Terminology Free registration HDB-0079

OHDSI Athena

Observational Health Data Sciences and Informatics Athena is a web application for distributing and browsing standardized vocabularies for the Observational Medical Outcomes Partnership (OMOP) Common Data Model maintained by OHDSI. It integrates over 136 vocabularies including SNOMED CT, LOINC, and RxNorm to facilitate data harmonization across observational health research networks. Terminology Open access HDB-0080

INDEPTH Network Health and Demographic Surveillance Systems (HDSS)

International Network for the Demographic Evaluation of Populations and Their Health (INDEPTH) INDEPTH operates 47 health and demographic surveillance system (HDSS) field sites across 19 countries in Africa, Asia, and Oceania, capturing longitudinal data on vital events and population health for over 3.8 million individuals. The network provides access to fully documented datasets through its data repository (data.indepth-network.org), enabling research on mortality, fertility, migration, and disease patterns in low- and middle-income countries. Open dataset Credentialed HDB-0141

PAHO/EIH Open Data

Pan American Health Organization (PAHO/WHO) PAHO/EIH Open Data (formerly PLISA) is a regional health information platform providing over 140 health indicators covering countries and territories across the Americas since 1995. The platform includes disease incidence and mortality data, vaccination coverage, outbreak information, non-communicable disease indicators, mental health data, and environmental health determinants disaggregated by age, sex, and urban-rural distribution. Open dataset Open access HDB-0147

WHO ICTRP (International Clinical Trials Registry Platform)

World Health Organization ICTRP is a WHO-operated search portal that aggregates clinical trial registration data from 21 primary registries across multiple countries and regions, including trials in all phases and across all therapeutic areas. The platform provides a unified search interface for finding trial information while linking to the original records maintained by contributing registries. Research database Open access HDB-0154

OHDSI

OHDSI Collaborative OHDSI is an international open-science collaborative that standardizes and coordinates observational health databases through the OMOP Common Data Model for large-scale analytics and real-world evidence generation. The network operates through a decentralized community of researchers and data partners who can conduct collaborative studies using harmonized health data while maintaining local data governance. Research database Free registration HDB-0160

TriNetX

TriNetX (private company) TriNetX operates a global federated real-world data network connecting approximately 14,200 healthcare sites across 20+ countries, with data on 309 million+ patient lives and 99 billion+ clinical data points. The platform serves pharmaceutical companies, healthcare providers, academic institutions, and researchers through a commercial subscription model for clinical trial design support, patient cohort identification, and real-world evidence research. Commercial provider Paid HDB-0169

WHO Data Platform

World Health Organization The WHO Data Platform (data.who.int) is a centralized interactive digital portal providing access to trusted global health data and statistics across thousands of health indicators. The platform offers browsable data by country and indicator, downloadable datasets, interactive visualizations tracking Triple Billion targets and health emergencies, and country-level health profiles. Open dataset Open access HDB-0170

WHO Global Health Expenditure Database (National Health Accounts)

World Health Organization The WHO Global Health Expenditure Database provides comparable health spending data for 195 countries and territories since 2000, including breakdowns by funding sources, financing arrangements, health functions, and disease-specific expenditures. The database is updated annually and tracks capital investments and country-level health expenditure profiles. Open dataset Open access HDB-0171

World Bank Health, Nutrition and Population Statistics

World Bank The World Bank provides comprehensive health, nutrition, and population statistics through its DataBank platform, offering over 50 health-related indicators including mortality rates, life expectancy, disease prevalence, immunization rates, and nutritional status measures. Data covers 195 countries with downloadable formats in CSV, XML, and Excel. Open dataset Open access HDB-0172

UNAIDS AIDSinfo

UNAIDS UNAIDS AIDSinfo provides comprehensive HIV/AIDS epidemiological estimates, country-reported data on national AIDS responses, service coverage metrics, and financial resource tracking with over 85 indicators on HIV funding. The platform includes data on key populations, HIV-related policies and legal frameworks, and health inequalities in HIV progress. Open dataset Open access HDB-0173

Global Fund Data Explorer

The Global Fund to Fight AIDS, Tuberculosis and Malaria The Global Fund Data Explorer provides public access to performance metrics and results data related to AIDS, tuberculosis, and malaria programs funded through the Global Fund. The platform enables stakeholders and the public to track grant performance, funding allocation, and programmatic outcomes. Open dataset Open access HDB-0174

Gapminder Health Datasets

Gapminder Foundation Gapminder provides free interactive data visualization tools and datasets on global health, demographics, and development indicators sourced from the UN and other reliable international sources. The platform offers animated datasets and visualization tools to examine health trends and misconceptions about global health progress. Open dataset Open access HDB-0175

Grand Challenge

Diagnostic Image Analysis Group (DIAG), Radboud University Medical Center A platform hosting 419+ open medical imaging challenges and datasets across diverse imaging modalities and anatomical sites. Participants can submit algorithms, access benchmark datasets, and benchmark their models against peer submissions in real time. Research database Free registration HDB-0176

MedMNIST

Jiancheng Yang et al. A collection of 18 standardized medical imaging datasets (12 2D and 6 3D) spanning multiple modalities including pathology, retinal imaging, breast ultrasound, and chest radiography. Datasets are pre-processed and curated for machine learning benchmarking with consistent train-validation-test splits. Open dataset Open access