Swedish Twin Registry - Birth Cohorts and Studies
In the STR dataportal you can search for metadata included in our cohorts and studies as well as create and download your own variable list. On this page you can find information about our studies grouped by cohorts and comprises questionnaires, PDF format files (Swedish only, when applicable), as well as areas of study, variables, codes and excel format files.
Please note that all files are password protected. To obtain the password contact the Swedish Twin Registry by sending an email to str-research@meb.ki.se.
Birth Cohorts and Studies
Questionnaire administrated in 1961
Questionnaire administrated in 1963
Questionnaire administrated in 1967
Questionnaire administrated in 1970
Questionnaire administrated in 1973
SALT (Screening Across the Lifespan Twin) administrated 1998–2002
TwinGene (Pair of twins from the SALT-study) administrated 2004–2008
SALTY (Screening Across the Lifespan Twin Young) administrated 2009–2010
- SALTY man questionnaire (Swedish only)
- SALTY woman questionnaire (Swedish only)
- SALTY area of study, questionnaire, codes (Swedish only)
- SALTY GWAS
Birth (Birth weight and risk of adult disease in offspring: etiologic determinants -29-58) data collected from birth journals
STAGE (Swedish Twin Studies of adults: Genes and Environment) administrated 2004–2006
STAGE ONE (Swedish Twin Studies of adults: Genes and Environment) follow-up of STAGE
YATSS (Young Adult Twin Study in Sweden) administered 2013
CATSS (The Child and Adolescent Twin Study in Sweden) administrated 2004–2019
Born 1886-1925
Born 1886-1958
Born 1959-1985
Born 1985-1992
Born 1992-2010
Important to Consider
Our surveys and interviews often include conditional questions, known as "branching." To ensure correct use and analysis of the data, it is essential that you review the documents outlining the questionnaire and interview structures before working with the data. You can find these documents under each respective study. They are labeled with the words “questionnaire” or “interview” in the document name and are organized by birth cohort.”