Table 4

Multivariate-adjusted HRs and 95% CIs of first CHD event, according to job strain category

Entire sampleManagers and proprietorsManual and non-manual workers
Job strain categoriesN#CHDHR95% CIN#CHDHR95% CIN#CHDHR95% CI
High strain1065461.571.01 to 2.4410670.600.25 to 1.47959392.921.54 to 5.51
Active605261.280.77 to 2.12193110.640.31 to 1.32412152.471.17 to 5.23
Passive1462631.140.76 to 1.72198221.160.64 to 2.11264411.670.89 to 3.12
Low strain971371.00REF322241.00REF649131.00REF
  • Low strain as reference category. MONICA Brianza, PAMELA and SEMM cohorts. Men were 25–64 years old and employed at time of recruitment.

  • HRs from Cox regression models with age as the time scale, adjusted for study type (population-based vs factory-based), systolic blood pressure, total cholesterol, HDL cholesterol, diabetes and current smokers. CHD occurred during the entire follow-up period. Job strain categories are based on items of Psychological Job Demand and Decision Latitude.

  • CHD, coronary heart disease; HDL, high-density lipoprotein; PAMELA, Pressioni Arteriose Monitorate E Loro Associazioni; SEMM, Surveillance of Employees of the Municipality of Milan.