Original article

Scand J Work Environ Health 2001;27(4):287-291    pdf

doi:10.5271/sjweh.616

Socioeconomic status, workplace characteristics and plasma fibrinogen level of Japanese male employees

by Ishizaki M, Martikainen P, Nakagawa H, Marmot M; The Japan Work Stress and Health Cohort Study Group

Objectives This study examined the relationships between workplace characteristics and plasma fibrinogen level and assessed the possibility of socioeconomic differences in plasma fibrinogen level being accounted for by workplace characteristics.

Methods Cross-sectional questionnaire data from 4343 Japanese male employees were examined with Karasek`s demand-control model, as was sedentary job and overtime work.

Results Less overtime work, a less sedentary job, and to a less extent, lower job control and low worksite support were related to increased plasma fibrinogen levels. Adjusting for employment grade strongly attenuated or eliminated these relationships. The association of job demands or job strain with plasma fibrinogen level was weak. High plasma fibrinogen in lower socioeconomic groups remained largely unchanged after adjustment for workplace characteristics.

Conclusions Workplace characteristics are not significantly related to the plasma fibrinogen levels of male Japanese employees after adjustment for socioeconomic status, and they do not explain socioeconomic differences in plasma fibrinogen levels among these employees.

The following article refers to this text: 2002;28(4):238-248