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Data Resource Profile: The Finnish TwinRegistry Project.

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The Older Finnish Twin Cohort, established 50 years ago, has been linked to extensive Finnish health and social data. This linkage enhances research on health, lifestyle, and aging across generations.

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Cohort profileData profileRegistry data

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Area of Science:

  • Epidemiology
  • Gerontology
  • Public Health

Background:

  • The Older Finnish Twin Cohort, established 50 years ago, comprises twins born before 1958.
  • Cohort members completed health and lifestyle questionnaires in 1975, 1981, 1991, and 2011.

Purpose of the Study:

  • To describe the linkage of the Older Finnish Twin Cohort with national health and social data registers.
  • To create a comprehensive data resource for epidemiological and aging research.
  • To include family and population data for enhanced analytical capabilities.

Main Methods:

  • Linking the Older Finnish Twin Cohort data with Finnish national social and healthcare registers.
  • Incorporating family data and a reference population (born 1945-1957).
  • Utilizing the Act on the Secondary Use of Health and Social Data (2019) for data access.

Main Results:

  • Successful linkage of the Older Finnish Twin Cohort to extensive health and social data.
  • Creation of a rich dataset for longitudinal and cross-sectional analyses.
  • Establishment of a reference population for generalizability.

Conclusions:

  • The linked dataset provides a valuable resource for studying aging, health, and lifestyle factors.
  • This enhanced resource supports broad epidemiological research in Finland.
  • Future research can leverage this data for insights into health determinants and outcomes.