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Divergent Influence of Different Type A Dimensions on Job Strain and Effort-Reward Imbalance

Hintsa, Taina PhD; Hintsanen, Mirka PhD; Jokela, Markus PhD; Pulkki-Råback, Laura PhD; Keltikangas-Järvinen, Liisa PhD

Journal of Occupational and Environmental Medicine: January 2010 - Volume 52 - Issue 1 - p 1-7
doi: 10.1097/JOM.0b013e3181c559ea
Original Articles

Background: We examined whether different Type A behavior dimensions have divergent influence on work stress.

Methods: The sample comprised 752 participants from the Cardiovascular Risk in Young Finns Study. Data were collected by questionnaires. Type A behavior was reported in subjects' adolescence and adulthood, and work stress was reported in adulthood. Work stress was measured according to Karasek's job demands-job control model and Siegrist's effort-reward imbalance (ERI).

Results: High leadership predicted lower job strain. High hard-driving predicted higher job strain. High leadership predicted lower ERI in 2001 and higher reward at work. High aggression, hard-driving, and eagerness-energy predicted ERI.

Conclusions: Leadership predicted low work stress, whereas high hard-driving seemed to predispose the employee to work stress. The current findings add to the work stress literature by showing a divergent influence of different Type A dimensions on work stress.

From the Department of Psychology (Dr Hintsa, Dr Hintsanen, Dr Jokela, Dr Pulkki-Råback, Dr Keltikangas-Järvinen), University of Helsinki, Finland; and The Finnish Institute of Occupational Health (Dr Pulkki-Råback), Helsinki, Finland.

CME Available for this Article at

Taina Hintsa and coauthors have no commercial interests related to this research.

The JOEM Editorial Board and planners have no financial interest related to this research.

Address correspondence to: Taina Hintsa, Department of Psychology, PO Box 9, FIN-00014 University of Helsinki, Finland; E-mail:

©2010The American College of Occupational and Environmental Medicine