Mental health of scientific researchers I. Characteristics of job stress among scientific researchers working at a research park in Japan

In order to clarify the characteristics of job stress in scientific researc hers, a self-administered questionnaire survey for 16,330 workers was carri ed out at Tsukuba Research Park City, Japan. The data of 7,063 (43%) worker s aged 20-59 years old were analyzed, and the characteristics of job stress in 3.290 scientific researchers were compared with those of 1,799 technici ans and 1,849 clerks. The researchers perceived higher quantitative and qua litative workload, greater job control (job decision latitude), and greater reward from work, than did the other two job groups. In addition, young ma le researchers received a large amount of support from their coworkers, whi le middle-aged male researchers perceived difficulty in personal relationsh ips with their coworkers. From the viewpoints of the demand-control-support model and the effort-reward imbalance model, the researchers, particularly men, were typically occupied in active jobs, and the large amount of effor t required for their work seemed to be balanced by greater reward from work . Compared with male researchers, however, female researchers perceived les ser job demand, lesser job control, and lesser reward from work. The workin g environment of female researchers may be related to the so-called career stress of working women. The mental health status of these scientific resea rchers should be examined directly in a future study.