Individual Study / WOLF

WOrk, Lipids and Fibrinogen Study
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WOrk, Lipids and Fibrinogen Study

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Networks -
Datasets -
Variables -
Start Year
1992
End Year
2011
Supplementary Information
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Investigators Contacts
  • Prof. Lars Alfredsson
    Karolinska Institute
  • Docent Maria Nordin
    Umeå University
  • Docent Eleonor Fransson
    Jönköping University
  • Prof. Lars Alfredsson
    Karolinska Institute
  • Docent Maria Nordin
    Umeå University
  • Docent Eleonor Fransson
    Jönköping University

Design

Study design
Cohort
Follow Up
Employees at approximately 60 companies served by 36 occupational health service units were followed up from Stockholm (WOLF-S), and Västernorrland and Jämtland (WOLF-N).
Participants from WOLF-N were first seen in 1996, and were followed-up in 2000, 2009, 2011.
Participants from WOLF-S were first seen in 1993, and were followed-up in 2009, 2011.
Supplementary Information

Marker Paper

Alfredsson L, Hammar N, Fransson E, et al. Job strain and major risk factors for coronary heart disease among employed males and females in a Swedish study on work, lipids and fibrinogen.

PUBMED 12199425

Recruitment

Recruitment Target
  • Individuals

Number of Participants

Number of Participants
10,413
Number of Participants with Biological Samples
10,413
Supplementary Information

Access

Availability of data and biosamples

Possible Access to Data
Possible Access to Biosamples
Other
Yes
No
Not applicable
Don't know

Timeline

Populations

Selection Criteria
Minimum age
15
Maximum age
65
Newborns
Twins
Countries
  • Sweden
Territory
Västernorrland and Jämtland
Ethnic Origin
Health Status
Supplementary Information about selection criteria

Recruitment

Sources of recruitment
  • General population
General Population
  • Volunteer enrolment
Supplementary Information
Information about the participants was collected with the help of occupational health centers that were linked to selected companies and workplaces. The participants had to fill in a questionnaire and visit the respective occupational health care for a health examination. A total of 36 occupational health service units in the counties of Västernorrland (Sweden), and Jämtland (Sweden), were invited to take part in the study, and, of these, 33 accepted the invitation.

Number of Participants

Number of Participants
4,715
Number of Participants with Biological Samples
4,715
Supplementary Information about selection criteria

83% were male and 17% were female.

Data Collection Events
# Name Description Start End
0 WOLF - WOLF-N - Baseline Questionnaire included a large number of questions covering psychosocial work conditions, sociodemographic factors, occupation and work environment, life-style factors, disease history, hereditary ... 1996-09 1998-04
1 WOLF - WOLF-N - follow-up 1 Information regarding psychosocial work conditions, profession, education, work and work environment, personal relationships, personality, physical activity, smoke, alcohol, sleep, health and ... 2000-01 2002-12
2 WOLF - WOLF-N - Follow-up 2 Questionnaire included a large number of questions covering psychosocial work conditions, sociodemographic factors, occupation and work environment, life-style factors, disease history, hereditary ... 2009-01 2009-12
3 WOLF- WOLF-N - Follow-up 3 A follow-up of the participants is done through register runs where information on death and causes of death is obtained.
Information about diseases and health visits is also obtained from ...		 2011-01 2011-12
Selection Criteria
Minimum age
15
Maximum age
65
Newborns
Twins
Countries
  • Sweden
Territory
Stockholm
Ethnic Origin
Health Status

Recruitment

Sources of recruitment
  • General population
General Population
  • Volunteer enrolment
Supplementary Information
Information about the participants was collected with the help of occupational health centers that were linked to selected companies and workplaces. The participants had to fill in a questionnaire and visit the respective occupational health care for a health examination. A total of 36 occupational health service units in the county of Stockholm (Sweden) were invited to take part in the study, and, of these, 33 accepted the invitation.

Number of Participants

Number of Participants
5,698
Number of Participants with Biological Samples
5,698
Supplementary Information about selection criteria

57% were male and 43% were female.

Data Collection Events
# Name Description Start End
0 WOLF - WOLF-S - Baseline Questionnaire included a large number of questions covering psychosocial work conditions, sociodemographic factors, occupation and work environment, life-style factors, disease history, hereditary ... 1993-06 1998-06
1 WOLF - WOLF-S - Follow-up 1 Questionnaire included a large number of questions covering psychosocial work conditions, sociodemographic factors, occupation and work environment, life-style factors, disease history, hereditary ... 2009-01 2009-12
2 WOLF - WOLF-S - Follow-up 2 A follow-up of the participants is done through register runs where information on death and causes of death is obtained.
Information about diseases and health visits is also obtained from ...		 2011-01 2011-12

Classifications

Socio-demographic and economic characteristics
Lifestyle and behaviours
Birth, pregnancy and reproductive health history
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Medication and supplements
Non-pharmacological interventions
Health and community care services utilization
Death
Physical measures and assessments
Laboratory measures
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Preschool, school and work life
Social environment and relationships
Physical environment
Administrative information

Socio-demographic and economic characteristics

Lifestyle and behaviours

Diseases

Health and community care services utilization

Death

Physical measures and assessments

Laboratory measures

Cognition, personality and psychological measures and assessments

Preschool, school and work life

Social environment and relationships

Administrative information