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Effects of job strain on fatigue: cross-sectional and prospective views of the job content questionnaire and effort--reward imbalance in the GAZEL cohort.
Occup Environ Med 2012; 69(6):377-84OE

Abstract

OBJECTIVES

The objectives this study were (1) to investigate correlations between measures of psychosocial workplace stress as measured in separate years by the Job Content Questionnaire (JCQ) and Effort-Reward Imbalance (ERI) scales; (2) to establish a valid measure of psychosocial job stress with its components (by identifying the individual and interactive associations of job stress components) and (3) to use the component measures to assess the risk of psychosocial strain at work on fatigue.

METHODS

The JCQ and ERI from the annual survey of the GAZEL cohort established in 1989 initially with 20,624 respondents were used to investigate the associations of workplace stress on mental and physical fatigue in two separate years (1998 and 2006). First, the JCQ measures from separate years (1997 and 1999) were combined to create a measure for the same year as ERI (1998). The new measure was validated for internal and external consistency. Using logistic regression, the subcomponents of stress (upper tertiles of psychological demands, physical demands, decision latitude, social support, effort, reward, ERI and overcommitment) were tested for associations with the highest reporting of mental and physical fatigue.

RESULTS

By combining JCQ responses from 1997 to 1999, we were able to increase the amount of information available on psychosocial factors in 1998. Psychometric properties of the workplace stress scales also showed expected factor loadings. Workplace psychosocial factors had greater associations with fatigue among men than women. Although psychosocial factors became less predictive of fatigue at 8 years of follow-up, associations between fatigue and psychosocial components (overcommitment, social support and rewards) remained significant.

CONCLUSIONS

These analyses continue to validate the various subcomponents scales of workplace stress as measured by the JCQ and effort-reward imbalance model in GAZEL. They also highlight the importance of psychosocial work factors in the experience of overall fatigue even after an 8-year follow-up.

Authors+Show Affiliations

Department of Society, Human Development and Health, Harvard School of Public Health, Boston, MA 02115, USA. grace_sembajwe@dfci.harvard.edu

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21849345

Citation

Sembajwe, Grace, et al. "Effects of Job Strain On Fatigue: Cross-sectional and Prospective Views of the Job Content Questionnaire and Effort--reward Imbalance in the GAZEL Cohort." Occupational and Environmental Medicine, vol. 69, no. 6, 2012, pp. 377-84.
Sembajwe G, Wahrendorf M, Siegrist J, et al. Effects of job strain on fatigue: cross-sectional and prospective views of the job content questionnaire and effort--reward imbalance in the GAZEL cohort. Occup Environ Med. 2012;69(6):377-84.
Sembajwe, G., Wahrendorf, M., Siegrist, J., Sitta, R., Zins, M., Goldberg, M., & Berkman, L. (2012). Effects of job strain on fatigue: cross-sectional and prospective views of the job content questionnaire and effort--reward imbalance in the GAZEL cohort. Occupational and Environmental Medicine, 69(6), pp. 377-84. doi:10.1136/oem.2010.063503.
Sembajwe G, et al. Effects of Job Strain On Fatigue: Cross-sectional and Prospective Views of the Job Content Questionnaire and Effort--reward Imbalance in the GAZEL Cohort. Occup Environ Med. 2012;69(6):377-84. PubMed PMID: 21849345.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of job strain on fatigue: cross-sectional and prospective views of the job content questionnaire and effort--reward imbalance in the GAZEL cohort. AU - Sembajwe,Grace, AU - Wahrendorf,Morten, AU - Siegrist,Johannes, AU - Sitta,Remi, AU - Zins,Marie, AU - Goldberg,Marcel, AU - Berkman,Lisa, Y1 - 2011/08/17/ PY - 2011/8/19/entrez PY - 2011/8/19/pubmed PY - 2012/7/28/medline SP - 377 EP - 84 JF - Occupational and environmental medicine JO - Occup Environ Med VL - 69 IS - 6 N2 - OBJECTIVES: The objectives this study were (1) to investigate correlations between measures of psychosocial workplace stress as measured in separate years by the Job Content Questionnaire (JCQ) and Effort-Reward Imbalance (ERI) scales; (2) to establish a valid measure of psychosocial job stress with its components (by identifying the individual and interactive associations of job stress components) and (3) to use the component measures to assess the risk of psychosocial strain at work on fatigue. METHODS: The JCQ and ERI from the annual survey of the GAZEL cohort established in 1989 initially with 20,624 respondents were used to investigate the associations of workplace stress on mental and physical fatigue in two separate years (1998 and 2006). First, the JCQ measures from separate years (1997 and 1999) were combined to create a measure for the same year as ERI (1998). The new measure was validated for internal and external consistency. Using logistic regression, the subcomponents of stress (upper tertiles of psychological demands, physical demands, decision latitude, social support, effort, reward, ERI and overcommitment) were tested for associations with the highest reporting of mental and physical fatigue. RESULTS: By combining JCQ responses from 1997 to 1999, we were able to increase the amount of information available on psychosocial factors in 1998. Psychometric properties of the workplace stress scales also showed expected factor loadings. Workplace psychosocial factors had greater associations with fatigue among men than women. Although psychosocial factors became less predictive of fatigue at 8 years of follow-up, associations between fatigue and psychosocial components (overcommitment, social support and rewards) remained significant. CONCLUSIONS: These analyses continue to validate the various subcomponents scales of workplace stress as measured by the JCQ and effort-reward imbalance model in GAZEL. They also highlight the importance of psychosocial work factors in the experience of overall fatigue even after an 8-year follow-up. SN - 1470-7926 UR - https://www.unboundmedicine.com/medline/citation/21849345/Effects_of_job_strain_on_fatigue:_cross_sectional_and_prospective_views_of_the_job_content_questionnaire_and_effort__reward_imbalance_in_the_GAZEL_cohort_ L2 - http://oem.bmj.com/cgi/pmidlookup?view=long&pmid=21849345 DB - PRIME DP - Unbound Medicine ER -