Table 3. Hazard ratios f of interactions among psychosocial hazards or on CVD classified by psychosocial hazards in participants (n = 707).
| Dependent variable | Univariate Analysis | Multivariate Analysis | ||||||
|---|---|---|---|---|---|---|---|---|
| Model 1 | HR | 95%CI | p-value | HR | 95%CI | p-value | ||
| Long working hours | 1.76 | 1.11 | 2.81 | 0.017 | 1.65 | 1.03 | 2.66 | 0.037 |
| High job stress | 1.03 | 0.56 | 1.87 | 0.936 | 0.94 | 0.51 | 1.74 | 0.852 |
| High fatigue | 1.31 | 0.81 | 2.12 | 0.280 | 1.43 | 0.87 | 2.36 | 0.160 |
| MetS | 1.69 | 1.07 | 2.67 | 0.025 | 1.33 | 0.77 | 2.29 | 0.308 |
| Model 2 | ||||||||
| Ref: Working hours < = 12 hrs and SSOS = +2 | ||||||||
| Either long working hours or high job stress only | 1.80 | 0.83 | 3.89 | 0.135 | 1.64 | 0.76 | 3.57 | 0.210 |
| Both long working hours and high job stress | 2.48 | 1.14 | 5.37 | 0.022 | 2.17 | 0.99 | 4.79 | 0.054 |
| MetS | 1.69 | 1.07 | 2.67 | 0.025 | 1.33 | 0.77 | 2.30 | 0.302 |
| Model 3 | ||||||||
| Ref: Working hours < = 12 hr & SOFI<3 | ||||||||
| Either long working hours or high fatigue only | 1.27 | 0.71 | 2.28 | 0.419 | 1.35 | 0.75 | 2.43 | 0.321 |
| Both long working hours and high fatigue | 2.29 | 1.28 | 4.09 | 0.005 | 2.31 | 1.26 | 4.23 | 0.007 |
| MetS | 1.69 | 1.07 | 2.67 | 0.025 | 1.32 | 0.77 | 2.26 | 0.321 |
| Model 4 | ||||||||
| Ref: SSOS = +2 & SOFI<3 | ||||||||
| Either high job stress or high fatigue only | 2.10 | 0.92 | 4.77 | 0.078 | 1.90 | 0.83 | 4.35 | 0.130 |
| Both high job stress and high fatigue | 2.15 | 0.96 | 4.83 | 0.064 | 2.07 | 0.90 | 4.73 | 0.086 |
| MetS | 1.70 | 1.08 | 2.69 | 0.022 | 1.32 | 0.76 | 2.27 | 0.321 |
| Model 5 | ||||||||
| Ref: Working hours < = 12 hr & SSOS = +2 & SOFI<3 | ||||||||
| One of three variables (long working hours, high job stress, or high fatigue) | 2.76 | 0.95 | 8.02 | 0.062 | 2.43 | 0.83 | 7.08 | 0.105 |
| Two of three variables (long working hours, high job stress, or high fatigue) | 2.66 | 0.92 | 7.67 | 0.070 | 2.57 | 0.89 | 7.45 | 0.082 |
| All of three variables (long working hours, high job stress, or high fatigue) | 4.10 | 1.42 | 11.80 | 0.009 | 3.71 | 1.26 | 10.91 | 0.017 |
| MetS | 1.69 | 1.07 | 2.67 | 0.025 | 1.31 | 0.76 | 2.26 | 0.331 |
Long working hours = driving hour>12 hour/ day; High job stress = SSOS_scores < +1; High fatigue = SOFI > = 3.
CVD, cardiovascular and cerebrovascular diseases; HR, hazard ratios; CI, confidence interval; MetS, metabolic syndrome; SSOS, Stress Satisfaction Offset Score; SOFI, Swedish Occupational Fatigue Inventory.
a. Adjusted for age, BMI, education, drinking, smoking, and exercise.