WOLF - Mental workload and indicators of chronic cardiovascular diseases

SND-ID: SND 0847

This study is part of the collection Swedish Cohort Consortium (Cohorts.se)

Description Data and documentation

Creator/Principal investigator(s)

Hugo Westerlund - Stockholm University, Stress Research Institute

Torbjörn Åkerstedt - National Swedish Institute for Psychosocial Medicine

Lars Alfredsson - Karolinska Institutet, Institute of Environmental Medicine

Peter Westerholm - National Institute for Working Life, Work and Health

Anders Knutsson - Mid Sweden University, Department of Health Sciences

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Description

WOLF is a study that started in Stockholm in 1993. The acronym WOLF stands for Work-Lipids-Fibrinogen. The study is a collaboration between the former Working Environment Institute, the Institute of Environmental Health and the Institute of Psychosocial Environmental Health at Karolinska Institute and the Institute of Social Medicine in Sundbyberg.
WOLF makes up a collaboration program with the included partial projects WOLF-Stockholm, WOLF-Norrland and WOLF-F (The importance of work organisation and psychosocial strain factors to stress related poor health, five year follow up of WOLF-Norrland).
Main question formulation: Mental work load (stress) and indications for chronic cardiovascular disease. This original and general program idea has been developed and detailed in the partial projects WOLF-Stockholm (WOLF-S), WOLF-Norrland (WOLF-N) and WOLF-F (the five year follow up of WOLF-N).

WOLF-Stockholm (WOLF-S)
Project term: The importance of psychosocial working environment for the risk factors for heart attack. A study in psychosocial working environment, blood pressure, blood lipids, fib

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Language

Swedish

Research principal, contributors, and funding

Research principal

Stockholm University

Responsible department/unit

Stockholm University

Contributor(s)

Karolinska Institutet

Arbetslivsinstitutet

Funding 1

  • Funding agency: Swedish Council for Working Life and Social Research

Funding 2

  • Funding agency: Arbetsmiljöfonden
Protection and ethical review

Data contains personal data

Yes

Code key exists

Yes

Method and time period

Unit of analysis

Time Method

Time period(s) investigated

1992–2009

Geographic coverage

Geographic spread

Geographic location: Sweden

Publications

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Tsutsumi A, Iwata N, Watanabe N, de Jonge J, Pikhart H, Fernández-López JA, Xu L, Peter R, Knutsson A, Niedhammer I, Kawakami N, Siegrist J. Application of item response theory to achieve cross- cultural comparability of occupational stress measurement. Int J Methods Psychiatr Res. 2009 Feb 4;18(1):58-67.

Nordin M, Knutsson A, Sundbom E, Åkerstedt T, Westerholm P, Alfredsson L. Low social support and vulnerability in the association with disturbed sleep. Longitudinal results from the WOLF study. Submitted to J Occup Health Psychology.

Fahlgren S. Vi och dom - en fallstudie av två samlokaliserade organisationer. Arbetslivsrapport 2001:8. Arbetslivsinstitutet, Stockholm 2001.

Peter R, Alfredsson L, Hammar N, Siegrist J, Theorell T, Westerholm P. High effort, low reward and cardiovascular risk factors in employed Swedish men and women: baseline results from the WOLF study. J Epidemiol Community Health 1998;52:540-547.

Åkerstedt T, Nordin M, Alfredsson L , Westerholm P, Kecklund, G. Predicting changes in sleep complaints from baseline values and changes in work demands, work control, and work preoccupation - The WOLF-project. Sleep Medicine 2012;13(1):73-80.

Nordin M, Knutsson A, Sundbom E, Åkerstedt T, Alfredsson L, Westerholm P. Low social support and coping strategies in the prediction of disturbed sleep: Main and interactive effects from the longitudinal WOLF study.

Brostedt EM, de Faire U, Westerholm P, Knutsson A, Alfredsson L. Job strain and plasminogen activator inhibitor-1: results from the Swedish WOLF study. Int Arc Occup Environ Health, 2004:77:341-344.

Nyberg A, Alfredsson L, Theorell T, Westerlund H, Vahtera J, Kivimäki M. Managerial leadership and ischaemic heart disease among employees: the Swedish WOLF study. Occup Environ Med. 2009 Jan;66(1):51-5.

Höckertin, C. Control and participation for employees within geriatric care - does ownership make a difference? Work: A Journal of Prevention, Assessment & Rehabilitation. 2008:30(2);137-147.

Fahlén G, Goine H, Edlund C, Arrelöv B, Knutsson A, Peter R. Effort-reward imbalance, "locked in" at work, and long-term sick leave. Int Arch Occup Environ Health. 2009 Jan;82(2):191-7.

Theorell T, Oxenstierna G, Westerlund H, Ferrie J, Hagberg J, Alfredsson L. Downsizing of staff is associated with lowered medically certified sick leave in female employees. Occup Environ Med. 2003:60:e9.

Bolin M & Härenstam A. An empirical study of bureaucratic and post-bureaucratic characteristics in 90 workplaces. Economic and Industrial Democracy. 2008; 29(4): 541-64.

Fransson EIM, Alfredsson L, de Faire U, Knutsson A, Westerholm P. Leisure time, occupational and household physical activity, and risk factors for cardiovascular disease in working men and women: the WOLF study. Scand J Public Health. 2003:31:324-333.
Till lärosätets (miun) databas

Åkerstedt T, Knutsson A, Westerholm P, Theorell T, Alfredsson L, Kecklund G. Sleep disturbances, work stress, and work hours. A cross-sectional study. J Psychosom Res 2002;53:741-748.

Alfredsson L, Hammar N, Fransson E, de Faire U, Hallqvist J, Knutsson A, Nilsson T, Theorell T, Westerholm P. Job strain and major risk factors for coronary heart disease among employed males and females in a Swedish study on work, lipids and fibrinogen. Scand J Work Environ Health 2002;28(4): 238-248.

Åkerstedt T, Knutsson A, Westerholm P, Theorell T, Alfredsson L, Kecklund G. Mental fatigue, work and sleep. J Psychosom Res. 2004:57:427-433.

Nyberg ST, Heikkilä K, Fransson EI, Alfredsson L, De Bacquer D, Bjorner JB, Bonenfant S, Borritz M, Burr H, Casini A, Clays E, Dragano N, Erbel R, Geuskens GA, Goldberg M, Hooftman WE, Houtman IL, Jöckel KH, Kittel F, Knutsson A, Koskenvuo M, Leineweber C, Lunau T, Madsen IEH, Magnusson Hanson LL, Marmot MG, Nielsen ML, Nordin M, Oksanen T, Pentti J, Rugulies R, Siegrist J, Suominen S, Vahtera J, Virtanen M, Westerholm P, Westerlund H, Zins M, Ferrie JE, Theorell T, Steptoe A, Hamer M, Singh-Man

Karlson B, Knutsson A, Lindahl B, Alfredsson L. Metabolic disturbances in male workers with rotating three-shift work. Results of the WOLF study. Int Arch Occup Environ Health 2003:76:424-430.

Marklund S, Bolin M, von Essen J. Can individual health differences be explained by workplace characteristics?-A multilevel analysis. Soc Sci Med. 2008 Feb;66(3):650-62.

Peter R, Alfredsson L, Knutsson A, Siegrist J, Westerholm P. Does a stressful psychosocial work environment mediate the effects of shift work on cardiovascular risk factors? Scand J Work Environ Health 1999;25:376-381.

Bolin M, Marklund S, Bliese P. Organizational impact on psychosocial working conditions. Work: A Journal of Prevention, Assessment & Rehabilitation. 2008;30(4):451-9.
Swepub Till lärosätets (umu) databas

Åkerstedt T, Knutsson A, Westerholm P, Theorell T, Alfredsson L, Kecklund G. Work organisation and unintentional sleep: results from the WOLF study. Occup Environ Med 2002;59:595-600.
Swepub Till lärosätets (miun) databas

Fransson EI, Nyberg ST, Heikkilä K, Alfredsson L, De Bacquer D, Batty GD, Bonenfant S, Casini A, Clays E, Goldberg M, Kittel F, Koskenvuo M, Knutsson A, Leineweber C, Magnusson Hanson LL, Nordin M, Singh-Manoux A, Suominen S, Vahtera J, Westerholm P, Westerlund H, Zins M, Theorell T, Kivimäki M; for the IPD-Work Consortium. Comparison of alternative versions of the job demand-control scales in 17 European cohort studies: the IPD-Work consortium. BMC Public Health 2012;12:62

Theorell T, Hasselhorn H-M. On cross-sectional questionnaire studies of relationships between psychosocial conditions of work and health - are they reliable? Int. Arch Occup Environm Health (2005) 78:517-522 (Editorial).

Höckertin C, Härenstam A. The impact of ownership on psychosocial working conditions: a multilevel analysis of 60 workplaces. Economic and Industrial Democracy 2006; 27(2):245-284.

Fahlén G, Knutsson A, Peter R, Åkerstedt T, Nordin M, Alfredsson L, Westerholm P. Effort-reward imbalance, sleep disturbances and fatigue. Int Arch Occup Environ Health 2006 May;79(5):371-8.

Karlsson B, Alfredsson L, Knutsson A, Andersson E, Torén K. Total mortality and cause-specific mortality of Swedish shift- and dayworkers in the pulp and paper industry in 1952-2001. Scand J Work Environ Health. 2005;31(1):30-35.

Fahlén G, Peter R, Knutsson A. The effort-reward imbalance model of psychosocial stress at the workplace - a comparison of ERI exposure assessment using two estimation methods. Work & Stress 2004:18:81-88.

Fransson E, Knutsson A, Westerholm P, Alfredsson L. Indications of recall-bias found in a retrospective study of physical activity and myocardial infarction. J Clin Epidemiol 2008Aug;61(8):840-7.

Sjögren B, Wang Z, Larsson B-M, Larsson K, Larsson PH, Westerholm P. Increase in interleukin-6 and fibrinogen in peripheral blood after swine dust inhalation. Scand J Work Environ Health 1999;25:39-41

Kivimäki M, Theorell T, Westerlund H, Vahtera J, Alfredsson L. Job strain and ischaemic disease: does the inclusion of older employees in the cohort dilute the association? The WOLF Stockholm Study. J Epidemiol Community Health. 2008 Apr;62(4):372-4.

Westerlund H, Theorell T, Alfredsson L. Organisational instability and cardiovascular risk factors in white-collar employees. An analysis of correlates of structural instability of workplace organisation on risk factors for coronary heart disease in a sample of 3,904 white collar employees in the Stockholm region. Eur J Publ Health 2004;14:37-42.

Leineweber C, Westerlund H, Theorell T, Kivimäki M, Westerholm P, Alfredsson L. Covert coping with unfair treatment at work and risk of incident myocardial infarction and cardiac death among men: Prospective cohort study. J Epidemiol Community Health, 2011;65:420-425

Theorell T, Alfredsson L, Westerholm P, Falck B. Coping with unfair treatment at work - what is the relationship between coping and hypertension in middle-aged men and women?An epidemiological study of working men and women in Stockholm (the WOLF-study). Psychother Psychosom 2000;69:86-94.

Åkerstedt T., Nordin M., Alfredsson L., Westerholm P., Kecklund G. Sleep and sleepiness: impact of entering or leaving shiftwork - a prospective study. Chronobiology International, 2010, 27, 987-96.

Dragano N. Social status, chronic work stress and cardiovascular disease. Masteruppsats vid Institut für Medizinische Soziologie, Henrich Heine Universität 2000. (Matrikelnr 829236)

Theorell T, Westerlund H, Ahlberg-Hultén G, Hertting A, WOLF study group. Krav och kontroll i magra organisationer. - en diskussion med rekommendationer inför framtida forskning baserad på analyser av data från 5620 anställda i olika företag åren 1992-1995 i WOLF-studien samt av indikatorer på arbetsmiljöförändringar för vårdpersonal i MUSIC Norrtälje-studien.kholm. RALF:s konferens om magra organisationer. Stockholm 1999.

Theorell T, Westerlund H, Alfredsson L, Oxenstierna G. Coping with critical life events and lack of control - the exertion of control. Psychoneuroendocrinology. 2005:30:1027-1032.

If you have published anything based on these data, please notify us with a reference to your publication(s). If you are responsible for the catalogue entry, you can update the metadata/data description in DORIS.

Dataset 1
WOLF - Norrland

Data format / data structure

Numeric

Creator/Principal investigator(s)

Hugo Westerlund - Stockholm University, Stress Research Institute

Torbjörn Åkerstedt - National Swedish Institute for Psychosocial Medicine

Lars Alfredsson - Karolinska Institutet, Institute of Environmental Medicine

Peter Westerholm - National Institute for Working Life, Work and Health

Anders Knutsson - Mid Sweden University, Department of Health Sciences

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Data collection 1

  • Mode of collection: Self-administered questionnaire: paper
  • Time period(s) for data collection: 1995-09–1998-04
  • Source of the data: Population group, Biological samples

Data collection 2

  • Mode of collection: Physical measurements and tests
  • Time period(s) for data collection: 1995-09–1998-04
  • Source of the data: Population group, Biological samples

Variables

559

Number of individuals/objects

4802

Dataset 2
WOLF-Stockholm

Data format / data structure

Numeric

Creator/Principal investigator(s)

Hugo Westerlund - Stockholm University, Stress Research Institute

Torbjörn Åkerstedt - National Swedish Institute for Psychosocial Medicine

Lars Alfredsson - Karolinska Institutet, Institute of Environmental Medicine

Peter Westerholm - National Institute for Working Life, Work and Health

Anders Knutsson - Mid Sweden University, Department of Health Sciences

... Show more..

Data collection 1

  • Mode of collection: Physical measurements and tests
  • Time period(s) for data collection: 1993-07–1995-06
  • Source of the data: Population group, Biological samples

Data collection 2

  • Mode of collection: Self-administered questionnaire: paper
  • Time period(s) for data collection: 1993-07–1995-06
  • Source of the data: Population group, Biological samples

Variables

485

Number of individuals/objects

5720

Dataset 3
WOLFF-AO

Data format / data structure

Numeric

Creator/Principal investigator(s)

Hugo Westerlund - Stockholm University, Stress Research Institute

Torbjörn Åkerstedt - National Swedish Institute for Psychosocial Medicine

Lars Alfredsson - Karolinska Institutet, Institute of Environmental Medicine

Peter Westerholm - National Institute for Working Life, Work and Health

Anders Knutsson - Mid Sweden University, Department of Health Sciences

... Show more..

Data collection 1

  • Mode of collection: Physical measurements and tests
  • Time period(s) for data collection: 2000–2003
  • Source of the data: Population group, Biological samples

Data collection 2

  • Mode of collection: Self-administered questionnaire: paper
  • Time period(s) for data collection: 2000–2003
  • Source of the data: Population group, Biological samples

Variables

895

Number of individuals/objects

4236

Dataset 4
WOLF-U

Description

In 2009, all participants who previously responded to a WOLF-questionnaire were asked to fill in a follow-up questionnaire (WOLF-U). The survey included questions about work environment, lifestyle and health. The response was positive and about 6 500 people answered the survey. The follow up did not include a health examination.

Data format / data structure

Numeric

Creator/Principal investigator(s)

Hugo Westerlund - Stockholm University, Stress Research Institute

Torbjörn Åkerstedt - National Swedish Institute for Psychosocial Medicine

Lars Alfredsson - Karolinska Institutet, Institute of Environmental Medicine

Peter Westerholm - National Institute for Working Life, Work and Health

Anders Knutsson - Mid Sweden University, Department of Health Sciences

... Show more..

Data collection

  • Mode of collection: Self-administered questionnaire
  • Time period(s) for data collection: 2009–2009
  • Source of the data: Population group, Biological samples

Number of individuals/objects

6500

Contacts for questions about the data

Published: 2007-01-01
Last updated: 2020-05-05