Table 1

Population characteristics, and crude, and also age, gender, educational level, and smoking status adjusted relative cardiovascular disease risk

VariableMean (SD) or %Crude relative risk (95% CI)Adjusted relative risk* (95% CI)
*Adjusted for age, gender, educational level, and smoking status.
†For age the relative risk is calculated per 10 years increase interval.
‡Relative risk compared to females.
§Relative risk compared to current non-smokers.
Age41.6 (8.5)2.59 (1.72 to 3.92)†2.19 (1.42 to 3.37)†
Gender (male)72.5%15.6 (2.14 to 113.3)‡11.3 (1.55 to 83.0)‡
Education
    Low30.6%11
    Intermediate31.9%0.60 (0.29 to 1.24)0.81 (0.39 to 1.68)
    High37.5%0.43 (0.20 to0.92)0.55 (0.26 to 1.2)
Smoking status (current smoker)24.4%2.84 (1.55-5.19)§2.74 (1.47 to 5.09)§
Need for recovery0.37 (0.26)
    Lowest tertile11
    Medium tertile1.23 (0.50 to 3.02)1.22 (0.49 to 3.04)
    Highest tertile3.56 (1.43 to 7.98)3.16 (1.34 to 7.48)
Sleep quality score2.1 (0.71)
    Poor sleep quality16.9%3.18 (1.70 to 5.95)2.82 (1.48 to 5.35)
Psychological distress (GHQ)11.4 (5.2)
    GHQ-case17.1%2.18 (1.14 to 4.20)2.00 (1.02 to 3.92)
Night shift work24.1%1.42 (0.74 to 2.73)1.34 (0.63 to 2.83)
Job demands (JCQ)33.1 (5.64)
    Lowest tertile11
    Medium tertile1.62 (0.67 to 3.90)1.60 (0.66 to 3.86)
    Highest tertile2.48 (1.10 to 5.60)2.29 (1.01 to 5.22)
Decision latitude (JCQ)72.3 (11.0)
    Highest tertile11
    Medium tertile0.72 (0.33 to 1.57)0.73 (0.33 to 1.62)
    Lowest tertile1.26 (0.63 to 2.52)1.21 (0.57 to 2.56)