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BMC Public Health. 2012; 12: 875.
Published online Oct 15, 2012. doi:  10.1186/1471-2458-12-875
PMCID: PMC3505747
Effort-reward imbalance and work ability: cross-sectional and longitudinal findings from the Second German Sociomedical Panel of Employees
Matthias Bethge,corresponding author1 Friedrich Michael Radoschewski,2 and Christoph Gutenbrunner1
1Department for Rehabilitation Medicine, Coordination Centre for Applied Rehabilitation Research, Hannover Medical School, Hannover, Germany
2Department of Health Care Research and Quality Management in Rehabilitation, Charité - Universitätsmedizin Berlin, Berlin, Germany
corresponding authorCorresponding author.
Matthias Bethge: bethge.matthias/at/mh-hannover.de; Friedrich Michael Radoschewski: michael.radoschewski/at/charite.de; Christoph Gutenbrunner: gutenbrunner.christoph/at/mh-hannover.de
Received May 21, 2012; Accepted October 12, 2012.
Abstract
Background
Although data from longitudinal studies are sparse, effort-reward imbalance (ERI) seems to affect work ability. However, the potential pathway from restricted work ability to ERI must also be considered. Therefore, the aim of our study was to analyse cross-sectional and longitudinal associations between ERI and work ability and vice versa.
Methods
Data come from the Second German Sociomedical Panel of Employees. Logistic regression models were estimated to determine cross-sectional and longitudinal associations. The sample used to predict new cases of poor or moderate work ability was restricted to cases with good or excellent work ability at baseline. The sample used to predict new cases of ERI was restricted to persons without ERI at baseline.
Results
The cross-sectional analysis included 1501 full-time employed persons. The longitudinal analyses considered 600 participants with good or excellent baseline work ability and 666 participants without baseline ERI, respectively. After adjustment for socio-demographic variables, health-related behaviour and factors of the work environment, ERI was cross-sectionally associated with poor or moderate work ability (OR = 1.980; 95% CI: 1.428 to 2.747). Longitudinally, persons with ERI had 2.1 times higher odds of poor or moderate work ability after one year (OR = 2.093; 95% CI: 1.047 to 4.183). Conversely, persons with poor or moderate work ability had 2.6 times higher odds of an ERI after one year (OR = 2.573; 95% CI: 1.314 to 5.041).
Conclusions
Interventions that enable workers to cope with ERI or address indicators of ERI directly could promote the maintenance of work ability. Integration management programmes for persons with poor work ability should also consider their psychosocial demands.
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