Origin of Variances in the Oldest-Old: Octogenarian Twins (OCTO-Twin) Wave 4
Is part of collection at SND: NEAR - National E-Infrastructure for Aging Research in Sweden
Access to data via
Linda Hassing - University of Gothenburg, Department of Psychology
University of Gothenburg - Department of Psychology
In wave 4, 84 twin pairs participated, with a total of 315 individuals.
Refer to the description of wave 1/the base line and the individual datasets in the NEAR portal for more details on variable groups and individual variables.
Data contains personal data
Sensitive personal data
Type of personal data
Pseudonymised data related to mental and physical health, as well as socio-demographics and social relationships
Code key exists
Unit of analysis
Twin pairs from the Swedish Twin Registry who were born 1913 or earlier and were at the age of 80 years at baseline.
Cohort study: Prospective
Description of study design
Time period(s) investigated
1991 – 2002
Number of individuals/objects
Data format / data structure
- Mode of collection: Measurements and tests
- Description of the mode of collection: The participants were examined in their home settings by registered nurses. The participants also answered a number of self-administered surveys.
- Time period(s) for data collection: 1997-04 – 2000-05
- Data collector: University of Gothenburg
- Sample size: 315
- Source of the data: Registers/Records/Accounts: Medical/Clinical, Registers/Records/Accounts
Geographic location: Sweden
Department of Psychology
Other - Ref. S-005011-50
Approval of Assurance to Comply with 45 CFR 46. Public Health Service, National Institutes of Health, USA. Office for Protection from Research Risks. July 20, 1999. Accepted by the ethical committee of the Karolinska Institute
Gerontology, specialising in medical and health sciences (Standard för svensk indelning av forskningsämnen 2011)
Psychology (Standard för svensk indelning av forskningsämnen 2011)
Activities of daily living, Aged, 80 and over, Epidemiologic studies, Dementia, Life style, Geriatrics, Memory, Longitudinal studies, Neuropsychological tests, Socioeconomic factors, Body mass index, Genes, Cognition, Environment, Depression, Personality, Mental health, Registries, Diabetes mellitus, type 2, Heredity, Quality of life, Twin study, Aging, Apolipoproteins e, Memory disorders, Nerve degeneration, Wechsler scales, Degenerative disease of nervous system unspecified, Mental status and dementia tests, Wechsler memory scale, Apoe genotype, Functional status, Memory function, Social interaction, Near - national e-infrastructure for aging research, Functional ability, Social life
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