Swedish National Study of Aging and Care in Kungsholmen
SNAC-K is a longitudinal study on the influence of life-time environmental and biological factors on medical, psychological and social health in late adulthood. It aims to increase the understanding of the aging process, and to identify possible preventive strategies to improve health and care of older adults.
The study consists of two parts: the population part and the care and services part. In the population part, a large, representative panel of elders in different age cohorts is followed over time to record and describe the aging process from different aspects. In the care and services part, a systematic, longitudinal, individually-based collection of data is performed concerning provision of care and services together with functional ability, specific health care problems, and living conditions of the recipients living in the area.
- Start Year
- 2001
Visit SNAC-K
| Investigators | Contacts |
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Design
- Study design
- Cohort
- Follow Up
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The participants are followed-up at ages 60, 66, 72, 78, 81, 84, 87, 90, 93, 96 and 99 years. 60- 70 year olds are followed-up every 6 years and 81+ year olds are followed-up ever 3 years.
- Supplementary Information
- Every 3 years participants 81+ years old are followed-up and every 6 years, participants 60-70 are followed-up. New cohorts were added in 2007-2010 (81 year olds), 2010-2012 (60 year olds), 2013-2015 (81 year olds).
Marker Paper
Lagergren M, Fratiglioni L, Hallberg IR et al., A longitudinal study integrating population, care and social services data. The Swedish National study on Aging and Care (SNAC). Aging Clin Exp Res. 2004 Apr;16(2):158-68.
PUBMED 15195992
Recruitment
- Sources of Recruitment
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- Individuals
Number of participants
- Number of participants
- 4,430
- Number of participants with biosamples
- 3,800
- Supplementary Information
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Every six years, a new group of 60-year-olds is added to the study population and every third year a new group of 81-year-olds is added.
Three additional cohorts have been added to the baseline in 2007-2008 (81 year-olds), 2010-2012 (60 year-olds) and 2013-2015 (81 year-olds). In 2019-2021 new cohorts of 60 and 81 year-olds will be included.
More detailed information can be found here
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
A sub-sample of 613 participants underwent MRI brain scanning.
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Supplementary Information
Timeline
Populations
The SNAC-K population consists of a random sample of individuals living both at home and in institutions, in the central part of Stockholm, Kungsholmen.
Selection Criteria
- Newborns
- Twins
- Countries
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- Sweden
- Territory
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Area of Kungsholmen/Essingeöarna
- Ethnic Origin
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- Health Status
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Recruitment
- Sources of recruitment
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- General population
- General Population
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- Selected sample
Number of participants
- Number of participants
- 3,363
- Number of participants with biosamples
- Supplementary Information
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- Phase 1 2001-2004: 3363 participants baseline.
- Phase 2 2004-2007: 992 participants follow-up (81+ older).
- Phase 3 2007-2010: 2251 participants (2057 followed up (all ages), 194 new (81 year olds).
- Phase 4 2010-2012: 1528 participants(850 participants follow-up (only 81+ year olds), 678 new (60 year olds).
- Phase 5 2013-2015: 1603 participants (1408 participants follow-up (all ages), 195 new (81 year olds).
- Phase 6 2016-2018: 1291 participants.
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
SNAC-K - Cohort 1 - Baseline
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Each subject was examined for six hours on average; two hours for the social interview and the assessment of physical functioning (performed by a nurse); two hours for clinical examination, ... |
2001 | 2004 |
| 1 |
SNAC-K - Cohort 1 - Follow-up1
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2004 | 2007 |
| 2 |
SNAC-K - Cohort 1 - Follow-up2
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2007 | 2010 |
| 3 |
SNAC-K - Cohort 1 - Follow-up3
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2010 | 2012 |
| 4 |
SNAC-K - Cohort 1 - Follow-up4
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2013 | 2015 |
| 5 |
SNAC-K - Cohort 1 - Follow-up5
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2016 | 2018 |
The population consists of a random sample of additional 81 year olds and older individuals living both at home and in institutions, in the central part of Stockholm, Kungsholmen.
Selection Criteria
- Minimum age
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81
- Newborns
- Twins
- Countries
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- Sweden
- Territory
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Area of Kungsholmen/Essingeöarna
- Ethnic Origin
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- Health Status
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Recruitment
- Sources of recruitment
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- General population
- General Population
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- Selected sample
Number of participants
- Number of participants
- 194
- Number of participants with biosamples
- Supplementary Information
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 2 |
SNAC-K - Cohort 2 - Baseline
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2007 | 2010 |
| 3 |
SNAC-K - Cohort 2 - Follow-up1
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2010 | 2012 |
| 4 |
SNAC-K - Cohort 2 - Follow-up2
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2013 | 2015 |
| 5 |
SNAC-K - Cohort 2 - Follow-up3
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2016 | 2018 |
The population consists of an additional random sample of 60 year old individuals living both at home and in institutions, in the central part of Stockholm, Kungsholmen.
Selection Criteria
- Minimum age
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60
- Maximum age
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60
- Newborns
- Twins
- Countries
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- Sweden
- Territory
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Area of Kungsholmen/Essingeöarna
- Ethnic Origin
-
- Health Status
-
Recruitment
- Sources of recruitment
-
- General population
- General Population
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- Selected sample
Number of participants
- Number of participants
- 678
- Number of participants with biosamples
- Supplementary Information
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 1 |
SNAC-K - Cohort 3 - Baseline
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2010 | 2012 |
| 3 |
SNAC-K - Cohort 3 - Follow-up1
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2016 | 2019 |
The SNAC-K population consists of an additional random sample of 81 year old individuals living both at home and in institutions, in the central part of Stockholm, Kungsholmen.
Selection Criteria
- Minimum age
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81
- Maximum age
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81
- Newborns
- Twins
- Countries
-
- Sweden
- Territory
-
Area of Kungsholmen/Essingeöarna
- Ethnic Origin
-
- Health Status
-
Recruitment
- Sources of recruitment
-
- General population
- General Population
-
- Selected sample
Number of participants
- Number of participants
- 195
- Number of participants with biosamples
- Supplementary Information
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 1 |
SNAC-K - Cohort 4 - Baseline
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2013 | 2015 |
| 2 |
SNAC-K - Cohort 4 - Follow-up1
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The same protocol as for the baseline data collection is used, but the information concerns only the follow-up period. The nurse interview assesses: demographic data, living ... |
2016 | 2018 |
The population consists of all persons aged 65 years and older and living in the central part of Stockholm, Kungsholmen, and using long-term care and services.
Selection Criteria
- Minimum age
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65
- Newborns
- Twins
- Countries
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- Sweden
- Territory
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Area of Kungsholmen/Essingeöarna
- Ethnic Origin
-
- Health Status
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Recruitment
- Sources of recruitment
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- Specific population
- Specific Population
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Other specific population :
Users of home help services, long-term home health care or rehabilitation or special housing.
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Other specific population :
Number of participants
- Number of participants
- Number of participants with biosamples
Data Collection Event
Data were collected each year in the spring. All contact between older persons and the care system in the involved areas were recorded. It concerned the operations of the long-term care services system including volume and character of services provided in the relation to disability and other factors influencing needs.
The data collected assessed the provision of acute care, geriatric hospital care, home health care and home services. Additionally, information on housing and received informal or privately-funded care was collected. Demographic and functioning information were also collected. A record was also made when care services was discontinued and a special notification was made in case of death.
- Start Date
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2001-02
- End Date
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2018
- Data sources
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- Questionnaires
- Administrative databases
- Data sources - Administrative databases
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- Health databases