MADT was launched in 1998 and included middle-aged twins born from 1931-1952. From each birth year 240 twins were selected for participation. In total 4,314 twins completed the baseline assessments. In the period from 2008-2011 follow-up assessments were conducted. The study was initiated as a parallel to the LSADT for studying associations of mid-life health, lifestyle and functioning with late-life health and mortality. Data were collected through comprehensive questionnaires, and physical and cognitive examinations. Also, biological samples were collected.
Focus areas for MADT
- Socio-demographic factors
- Fertility
- Self-rated health
- Physical abilities
- Cognitive performance
- Medications
- Vision and hearing
- Psychological well-being
- Activities of Daily Living
- Lifestyle factors
- Anthropometric measures
- Grip strength measurements
- Repeated chair-stand test
- Spirometry
- Biological samples