DOI: 10.3886/icpsr03843.v1
title: Swedish Adoption/Twin Study on Aging (SATSA), 1984, 1987, 1990, 1993, 2004, 2007, and 2010
title: Version 1

description: The Swedish Adoption/Twin Study on Aging (SATSA) was designed to study the origins of individual differences in aging and the environmental and genetic factors that are involved. SATSA began in 1984, and six additional waves were conducted in 1987, 1990, 1993, 2004, 2007, and 2010. The questionnaire was initially sent to all twins from the Swedish Twin Registry who were separated at an early age and raised apart; the survey was also administered to a control sample of twins who were raised together. The respondents were surveyed on items that included health status, how they were raised, work environment, alcohol consumption, and dietary and smoking habits, as well as questions about personality and attitudes; this information comprised the first component. The second component was collected from a subsample composed of 150 pairs of twins raised apart and 150 pairs of twins raised together. This subsample participated in seven waves of in-person testing, which included a health examination, structured interviews, and tests on functional capacity, cognitive abilities, and memory. The data are represented according to questionnaire and time number, and correspond to each wave/year: Questionnaire 1 and In-Person Testing Time 1 were in 1984; Questionnaire 2 and In-Person Testing Time 2 were in 1987; Questionnaire 3 and In-Person Testing Time 3 were in 1990; Questionnaire 4 and In-Person Testing Time 4 were in 1993; Questionnaire 5 was in 2003; In-Person Testing Time 5 was in 2004; Questionnaire 6 and In-Person Testing Time 6 were in 2007; In-Person Testing Time 7 was in 2010. The Administrative and Cognitive datasets include data from all years/waves. The Smell Survey dataset only includes data from 1990. No years were specified for the Contact measures and Separation measures datasets. Demographic and background information includes age, sex, education, family history, household composition and employment.
description: The purpose is to study various aspects of aging; the relative importance of genetic and environmental factors for individual differences in aging, especially in cognitive and physical domains. A further main focus is to study changes within and across domains and which genetic and life style factors predict these changes.
description: SATSA was started in 1984 and is comprised of several longitudinal components. To begin with, a comprehensive questionnaire was sent to all twins in the Swedish Twin Registry who were separated at an early age and reared apart, and a control sample of twins reared together. The questionnaires for the first component are composed of items concerning rearing, family, adult, and working environment, health status, health related behaviors (e.g. alcohol, tobacco, and dietary habits) as well as relationships, and personality measures. The questionnaires were sent again at three-year intervals in 1987, 1990, 1993, and after a break again in 2004, 2007, and 2010. Thus far, more than 2,000 twins have responded to at least one of the seven questionnaire assessments conducted between 1984 and 2010. In the second component a subsample of 861 individuals have participated in at least one wave of in-person testing (IPT). The IPT for the second component is composed of a health examination, structured interviews, tests of functional capacity, and memory and thinking abilities.
description: The data are not weighted and no weight variables are present in the collection.
description: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Standardized missing values.; Checked for undocumented or out-of-range codes..
description: Presence of Common Scales: Please refer to the SATSA Codebooks for datasets 16-27, 28-30, 31-32, 33-35, 36-39, 40-45, 46-48, and 49-51 for information about scales.
description: Response Rates: Thus far more than 2,000 twins have responded to at least one of the seven questionnaire assessments conducted between 1984 and 2010. In the second component a subsample of 861 individuals have participated in at least one wave of in-person testing (IPT). To date, over 76 percent of the sample has participated in 3 or more measurement waves. Please refer to the Administrative, Scales and Derived Variables SATSA Codebook for additional information about response rates.
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: Administrative Data 
 DS2: Questionnaire 1 Red Data, 1984 
 DS3: Questionnaire 1 Blue Data, 1984 
 DS4: Questionnaire 2 Data, 1987 
 DS5: In-Person Testing, Time 2, Questionnaire Data 
 DS6: In-Person Testing, Time 3, Questionnaire Data 
 DS7: Questionnaire 3 Data, 1990 
 DS8: Questionnaire 3 Supplement Data, 1990 
 DS9: Questionnaire 4 Data, 1993 
 DS10: In-Person Testing, Time 4, Questionnaire Data 
 DS11: In-Person Testing, Time 5, Questionnaire Data 
 DS12: Questionnaire 5 Data, 2003 
 DS13: In-Person Testing, Time 6, Questionnaire Data 
 DS14: Questionnaire 6 Data, 2007 
 DS15: In-Person Testing, Time 7, Questionnaire Data 
 DS16: Q1 Scales, Red Questionnaire Data, 1987 
 DS17: Q1 Scales, Blue Questionnaire Data, 1984 
 DS18: Questionnaire 2 Scales Data 
 DS19: In-Person Testing Data, Time 2, Scales 
 DS20: In-Person Testing, Time 3, Scales 
 DS21: Questionnaire 3 Scales Data 
 DS22: Questionnaire 4 Scales Data 
 DS23: In-Person Testing Data, Time 5, Scales 
 DS24: Questionnaire 5 Scales Data 
 DS25: In-Person Testing Data, Time 6, Scales 
 DS26: Questionnaire 6 Scales Data 
 DS27: In-Person Testing Data, Time 7, Scales 
 DS28: In-Person Testing, Time 1, Health Testing Data 
 DS29: In-Person Testing, Time 1, Food Data 
 DS30: In-Person Testing, Time 1, Blood Data 
 DS31: In-Person Testing, Time 2, Health Data 
 DS32: In-Person Testing, Time 2, Food Data 
 DS33: In-Person Testing, Time 3, Health Data 
 DS34: In-Person Testing Data, Time 3, Risk Evaluation Data 
 DS35: In-Person Testing, Time 3, Occupation and Leisure Data 
 DS36: In-Person Testing, Time 4, Health Data 
 DS37: In-Person Testing, Time 4, Risk Data 
 DS38: In-Person Testing, Time 4, Telephone Interview Data 
 DS39: In-Person Testing, Time 4, Informant Telephone Interview Data 
 DS40: In-Person Testing, Time 5, Health Data 
 DS41: In-Person Testing, Time 5, Occupation and Leisure Data 
 DS42: In-Person Testing, Time 5, Family History Data 
 DS43: In-Person Testing, Time 5, Family Assessment Data 
 DS44: In-Person Testing, Time 5, Risk Data 
 DS45: In-Person Testing, Time 5, Telephone Interview Data 
 DS46: In-Person Testing, Time 6, Health Data 
 DS47: In-Person Testing, Time 6, Leisure Data 
 DS48: In-Person Testing, Time 6, Telephone Interview Data 
 DS49: In-Person Testing, Time 7, Health Data 
 DS50: In-Person Testing, Time 7, Leisure Data 
 DS51: In-Person Testing, Time 7, Telephone Interview Data 
 DS52: Cognitive Data 
 DS53: Contact Measures Data 
 DS54: Separation Measures Data 
 DS55: Smell Survey Data, 1990
description: cognitive assessment test, face-to-face interview, mail questionnaire, self-enumerated questionnaire, telephone interview 
This collection only contains data up through the year 2010, which goes through Questionnaire 7 and IPT7.
The datasets in this collection can be linked by the variable TWINNR.
The data, setup files, and documentation for this collection contain characters with diacritical marks used in the Swedish language. Additionally, several string responses contain suspicious characters which were not addressed by ICPSR.
This collection has been minimally processed by ICSPR and users will need to refer to the SATSA Codebooks for each corresponding dataset for details such as question text.
 Additional information about SATSA can be found at the Karolinska Institutet Web site (Swedish) or the Karolinska Institutet Web site (English).
description: All pairs of twins from the Swedish Twin Registry who said that they were separated before the age of 10 and raised apart and twins that were raised together and were matched by gender, date, and county of birth. Smallest Geographic Unit: county
description: All surviving persons from twin pairs that were raised apart and the matched sample of twins that were raised together. Please refer to the Administrative, Scales and Derived Variables SATSA Codebook for additional information about sampling.