Multivariate-adjusted HRs and 95% CIs of first CHD event, according to job strain category
| Entire sample | Managers and proprietors | Manual and non-manual workers | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Job strain categories | N | #CHD | HR | 95% CI | N | #CHD | HR | 95% CI | N | #CHD | HR | 95% CI |
| High strain | 1065 | 46 | 1.57 | 1.01 to 2.44 | 106 | 7 | 0.60 | 0.25 to 1.47 | 959 | 39 | 2.92 | 1.54 to 5.51 |
| Active | 605 | 26 | 1.28 | 0.77 to 2.12 | 193 | 11 | 0.64 | 0.31 to 1.32 | 412 | 15 | 2.47 | 1.17 to 5.23 |
| Passive | 1462 | 63 | 1.14 | 0.76 to 1.72 | 198 | 22 | 1.16 | 0.64 to 2.1 | 1264 | 41 | 1.67 | 0.89 to 3.12 |
| Low strain | 971 | 37 | 1.00 | REF | 322 | 24 | 1.00 | REF | 649 | 13 | 1.00 | REF |
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.