FIGURE 1—

Adjusted risk ratios for systolic blood pressure increases in the highest quintile according to job strain and known high blood pressure risk factors among men in Quebec City, 1991–2003.

Note. The models included the following covariates: age, body mass index, social support at work, living with a child, number of years working for the organization, and baseline systolic blood pressure value. Known high blood pressure risk factors were also controlled for job strain. *P < .05 compared with > 35 years of age and never exposed.