50-year-olds in Gothenburg
Overview
- Acronym
- 50YMG
- Website
- 50YMG
- Investigators
-
- Contacts
-
General Design
- Study design
- Cohort
- Start - End Year
- 1963 - 2013
- General Information on Follow Up (profile, frequency)
-
Participants born in 1913 participated in the survey when they were 50 years old and were followed up when they were 54, 60, 67, 75 and 80 years old.
All participants were followed up until death or until December 31, 2011. - Recruitment Target
-
- Individuals
- Families
- Number of Participants
- 4,503
- Number of Participants with Biological Samples
- 4,503
- Supplementary information about number of participants
-
Since 1963, the study has been filled with new 50-year-olds, and since 2003 women are also included in the study. New samples of 50-year-old men were drawn in 1973, 1983, 1993-1994, 2003-2004 and 2013-2014.
- Men born in 1913, 855 participants.
- Men born in 1923, 226 participants.
- Men born in 1933, 776 participants.
- Men born in 1943, 798 participants.
- Men born in 1953, 595 participants.
- Men born in 1963, 313 participants.
- Women born in 1953, 677 participants.
- Sons to men born in 1913, 263 participants.
Access
Availability of data and biosamples
Possible Access to Data | |
Possible Access to Biosamples | |
Other |
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Marker Papers
Zhong Y, Rosengren A, Fu M, et al. Secular changes in cardiovascular risk factors in Swedish 50-year-old men over a 50-year period: The study of men born in 1913, 1923, 1933, 1943, 1953 and 1963. EUR J PREV CARDIOL. 2017 APR;24(6):612-620.
PUBMED 27794107Tibbling G, Aurell E, Hjortzberg-Nordlund H et al. A General Health-examination of a random sample of 50-year-old men in Goteborg. Acta Med Scand. 1965 Jun;177:739-49.
PUBMED 14334667Welin L, Svärdsudd K, Wilhelmsen L et al. Analysis of risk factors for stroke in a cohort of men born in 1913. The New England Journal of Medicine. 1987 Aug;317(9):521-526.
PUBMED 3614303Wilhelmsen L, Svärdsudd K, Korsan-Bengtsen K, et al. Fibrinogen as a risk factor for stroke and myocardial infarction. The New England Journal of Medicine. 1984 Aug;311(8):501-505.
PUBMED 6749207Hansson PO, Welin L, Tibblin G et al. Deep vein thrombosis and pulmonary embolism in the general population. 'The Study of Men Born in 1913'. Arch Intern Med. 1997 Aug 11-25;157(15):1665-70.
PUBMED 9250227Supplementary Information
Wilhelmsen L, Svärdsudd K, Eriksson H, et al. Factors associated with reaching 90 years of age: a study of men born in 1913 in Gothenburg, Sweden. J Intern Med. 2011 Apr;269(4):441-51. PUBMED: 21175902
Persson CU, Collén AC, Rosengren A, et al. Secular trends in cardiovascular risk factors among women aged 45-54 years in Gothenburg, Sweden, from 1980 to 2014. BMC Public Health. 2020 Jul 1;20(1):1042 PUBMED: 32611406
Timeline
Populations
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
- Other Criteria
- Day of birth divisible by three.
- Supplementary Information about selection criteria
-
Systematic representative sample based on birth date.
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
In 1963, a sample was drawn from the Swedish population register consisting of all the men born in 1913 on a day divisible by three (e.g. the third, sixth, ninth day, and so on, of each month) and living in the city of Gothenburg.
These criteria were met by 973 men, of whom 855 (87.9%) participated in the study.
In addition, new cross-sectional samples of men born in 1913 and living in the city of Gothenburg were selected in 1973, 1980, 1988 and 1993 using the same criteria as in 1963.
Sample Size
- Number of Participants
- 855
- Number of Participants with Biological Samples
- 855
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1913 - Baseline |
|
|
1963 (January) | 1963 (December) |
1 | 50YMG - Men born 1913 - Follow-up 1 |
|
|
1967 (January) | 1967 (December) |
2 | 50YMG - Men born 1913 - Follow-up 2 |
|
|
1973 (January) | 1973 (December) |
3 | 50YMG - Men born 1913 - Follow-up 3 |
|
|
1980 (January) | 1980 (December) |
4 | 50YMG - Men born 1913 - Follow-up 4 |
|
|
1988 (January) | 1988 (December) |
5 | 50YMG - Men born 1913 - Follow-up 5 |
|
|
1993 (January) | 1993 (December) |
7 | 50YMG - Men born 1913 - Follow-up 6 |
|
2011 (January) | 2011 (December) |
Selection Criteria
- Gender
-
Women only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
In 2003 every third of all women born in 1953 were invited to participate in the study.
Sample Size
- Number of Participants
- 667
- Number of Participants with Biological Samples
- 667
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Women born 1953 - Baseline |
|
|
2003 | 2003 |
1 | 50YMG - Women born 1953 - Follow-up 1 |
|
2021 | 2021 |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
30
- Countries
-
- Sweden
- Territory
- Gothenburg
- Other Criteria
- Individuals are the sons to men born 1913 in Gothenburg and recruited to the study in 1963.
Sources of Recruitment
- Specific Population
-
- Other specific population : 30-year-old sons to men born in 1913 and living in Gothenburg.
- Supplementary Information
-
In 1973, 30-year-old sons to the 50YMG - born 1913 population recruited in 1963, were asked to participate in a baseline examination. Only 263 subjects met the age selection criteria and were included in the study. In 1980, a new sample of 30-year-old sons to men born in 1913 were recruited via the National Board of Health and Welfare's register.
Sample Size
- Number of Participants
- 33,263
- Number of Participants with Biological Samples
- 33,263
- Supplementary information about number of participants
-
- 263 participants recruited in 1973
- 33000 participants recruited in 1980
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
1 | 50YMG - Sons of men born 1913 - Baseline |
|
|
1973 (January) | 1980 (December) |
2 | 50YMG - Sons of men born 1913 - Follow-up 1 |
|
|
1988 (January) | 1988 (December) |
2 | 50YMG - Sons of men born 1913 - Follow-up 2 |
|
|
1993 (January) | 1993 (December) |
3 | 50YMG - Sons of men born 1913 - Follow-up 3 |
|
2011 (January) | 2011 (December) | |
4 | 50YMG - Sons of men born 1913 - Follow-up 4 |
|
2021 (January) | 2021 (December) |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
- Other Criteria
- Day of birth divisible by nine.
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
Systematic representative sample based on birth date. Participation rate 77.4%
Sample Size
- Number of Participants
- 226
- Number of Participants with Biological Samples
- 226
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1923 - Baseline |
|
|
1973 (January) | 1973 (December) |
1 | 50YMG - Men born 1923 - Follow-up 1 |
|
|
1980 (January) | 1980 (December) |
2 | 50YMG - Men born 1923 - Follow-up 2 |
|
|
1988 (January) | 1988 (December) |
3 | 50YMG - Men born 1923 - Follow-up 3 |
|
|
1993 (January) | 1993 (December) |
4 | 50YMG - Men born 1923 - Follow-up 4 |
|
2011 (January) | 2011 (December) | |
5 | 50YMG - Men born 1923 - Follow-up 5 |
|
2021 (January) | 2021 (December) |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
Randomly selected population sample. Participation rate 76.4%.
Sample Size
- Number of Participants
- 776
- Number of Participants with Biological Samples
- 776
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1933 - Baseline |
|
|
1983 (January) | 1984 (December) |
1 | 50YMG - Men born 1933 - Follow-up 1 |
|
|
1991 (January) | 1992 (December) |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
Random population sample. Participation rate 54.5%
Sample Size
- Number of Participants
- 798
- Number of Participants with Biological Samples
- 798
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1943 - Baseline |
|
|
1993 (January) | 1994 (December) |
1 | 50YMG - Men born 1943 - Follow-up 1 |
|
|
2003 (January) | 2003 (December) |
2 | 50YMG - Men born 1943 - Follow-up 2 |
|
|
2014 (January) | 2014 (December) |
3 | 50YMG - Men born 1943 - Follow-up 3 |
|
2021 (January) | 2021 (December) |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
Random population sample. Participation rate 59.9%
Sample Size
- Number of Participants
- 677
- Number of Participants with Biological Samples
- 677
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1953 - Baseline |
|
|
2003 (January) | 2004 (December) |
1 | 50YMG - Men born 1953 - Follow-up |
|
2021 (January) | 2021 (December) |
Selection Criteria
- Gender
-
Men only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
Random population sample. Participation rate 48.2%
Sample Size
- Number of Participants
- 313
- Number of Participants with Biological Samples
- 313
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Men born 1963 - Baseline |
|
|
2013 (January) | 2014 (December) |
1 | 50YMG - Men born 1963 - Follow-up |
|
2021 (January) | 2021 (December) |
Selection Criteria
- Gender
-
Women only
- Minimum age
-
50
- Countries
-
- Sweden
- Territory
- Gothenburg
- Other Criteria
- Every fifth woman born in 1963.
Sources of Recruitment
- General Population
-
- Volunteer enrolment
- Supplementary Information
-
Participation rate 53%.
Sample Size
- Number of Participants
- 343
- Number of Participants with Biological Samples
- 343
Data Collection Events
# | Name | Data sources | Data sources - Biosamples | Start | End |
---|---|---|---|---|---|
0 | 50YMG - Women - born 1963 - Baseline |
|
|
2013 (October) | 2014 (April) |
Participating Studies
Acronym | Name | Study design | Countries |
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Harmonization Initiatives Included
Acronym | Name |
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Datasets
Name | Data Collection Events | Variables |
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Areas of Information Collected
- Socio-demographic and economic characteristics
- Death
- Lifestyle and behaviours
- Physical measures and assessments
- Birth, pregnancy and reproductive health history
- Laboratory measures
- Perception of health, quality of life, development and functional limitations
- Cognition, personality and psychological measures and assessments
- Diseases
- Life events, life plans, beliefs and values
- Symptoms and signs
- Preschool, school and work life
- Medication and supplements
- Social environment and relationships
- Non-pharmacological interventions
- Physical environment
- Health and community care services utilization
- Administrative information
Variables Content Summary
Areas of Information Collected
Areas of Information Collected per per Population and Data Collection Event
Networks
Acronym | Name | Harmonization Initiatives | Individual Studies |
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