Initiative / Gateway

The Gateway to Global Aging Data

The Gateway to Global Aging Data

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Studies 16
The Gateway to Global Aging Data ( is a data and information platform developed to facilitate longitudinal and cross-country analyses on aging, especially those using the family of Health and Retirement Studies (HRS) around the world. To further this effort, the Gateway provides searchable metadata, extensive cross-survey documentation, downloadable harmonized microdata with variables standardized across surveys, and graphs and tables that enable users to instantly compare variables of interest over time, across countries, and against macro-level contextual information at no cost.
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Investigators Contacts
  • Jenny Wilkens
    The Center for Economic and Social Research (CESR), University of Southern California
  • Drystan Phillips
    The Center for Economic and Social Research (CESR), University of Southern California
  • Dr. Jinkook Lee
    The Center for Economic and Social Research (CESR), University of Southern California

General Information

Year created
Types of cohorts
  • Population cohort
  • United States of America
  • Mexico
  • Israel
  • Costa Rica
  • South Korea
  • Japan
  • China
  • India
  • United Kingdom
  • Austria
  • Belgium
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Greece
  • Hungary
  • Italy
  • Latvia
  • Lithuania
  • Luxembourg
  • Malta
  • Netherlands
  • Poland
  • Portugal
  • Romania
  • Slovakia
  • Slovenia
  • Spain
  • Sweden
  • Switzerland
  • Ireland
  • Indonesia
  • Ghana
  • Russian
  • South Africa
  • Brazil
  • Thailand
  • Malaysia
America, Asia, Europe
This project has received funding from the National Institute on Aging, National Institutes of Health (R01 AG030153, RC2 AG036619, R03 AG043052, R24 AG048024)
Criteria of cohort's to be included
Cohort studies about aging and health, most of them harmonized ex-ante with the family of international Health and Retirement studies.
Health topic
  • Ageing
Socio-environmental context
  • Air pollution
  • Other : pension policies, macroeconomic environment


Number of participants

With harmonized data

Age range of the samples

Minimum age

Methodology for harmonization and integration

Strategy of harmonization
Data processing methods
  • Standardisation
  • Multiple imputation
  • Others
  • Type of infrastructure
    Some centrally, other locally
    Integrative data analysis
    • Pooled analyses
  • Stata
  • Supplementary information
    The strategy of harmonisation is ex-post in most studies, even though newer studies like LASI is ex-ante. Countries which have metadata only: Indonesia; Ghana; Russian Federation; South Africa; Scotland; Northern Ireland; Brazil; Thailand; Malaysia.

    Number of cohorts

    With harmonized data
    Will more cohorts be harmonized?
    Number of harmonized variables (max.)


    Availability of metadata
    Availability of individual data
    Under request

    Individual Studies

    Acronym Name Study design Participants Countries
    CHARLS The China Health and Retirement Longitudinal Study Population cohort 17,708 China
    CRELES Costa Rican Longevity and Healthy Aging Study Population cohort 2,827
    ELSA English Longitudinal Study of Ageing Population cohort 12,099 United Kingdom
    ESLI-Brasil The Brazilian Longitudinal Study of Aging or Estudo Longitudinal da Saúde e Bem-Estar dos Idosos Brasileiros Population cohort 9,412
    HAALSI The Health and Aging Study in Africa Population cohort 5,059
    HAGIS Healthy Ageing in Scotland Population cohort 1,000
    HRS Health and Retirement Survey Population cohort 37,317 United States of America
    IFLS Indonesia Family Life Survey Population cohort 30,000
    JSTAR Japanese Study of Aging and Retirement Population cohort 7,268 Japan
    KLOSA The Korean Longitudinal Study of Ageing Population cohort 10,254 South Korea
    LASI The Longitudinal Aging Study in India Population cohort 1,683 India
    MHAS The Mexican Health and Aging Study Population cohort 15,146 Mexico
    NICOLA Northern Ireland Cohort for the Longitudinal Study of Ageing Population cohort 8,500
    SAGE WHO Study on Global Ageing and Adult Health Population cohort 63,437 South Africa , Ghana , China , India , Russian , Mexico
    SHARE The Survey of Health, Ageing and Retirement in Europe Population cohort 30,811 Austria , Belgium , Czech Republic , Denmark , Estonia , France , Greece , Hungary , Ireland , Israel , Italy , Netherlands , Poland , Sweden , Switzerland , Germany , Luxembourg , Croatia
    TILDA The Irish Longitudinal Study of Ageing Population cohort 8,500