Table 4.

Associations of job strain with arterial stiffness in total sample (n = 2141, β coefficients with 95% CIs).

Variables		Model I	Model II	Model III	Model IV
Demand	Increase per SD	0.011 (−0.000, 0.023)	0.012 (−0.000, 0.023)	0.011 (−0.001, 0.023)	0.011 (−0.001, 0.022)
Control	Decrease per SD	0.007 (−0.006, 0.019)	0.006 (−0.006, 0.018)	0.006 (−0.006, 0.018)	0.007 (−0.005, 0.020)
	Adjusted R2	0.324	0.328	0.328	0.333
Job strain	Low strain	0	0	0	0
	Active	0.011 (−0.023, 0.045)	0.011 (−0.023, 0.045)	0.012 (−0.022, 0.046)	0.010 (−0.024, 0.044)
	Passive	0.009 (−0.029, 0.047)	0.008 (−0.030, 0.046)	0.010 (−0.028, 0.048)	0.011 (−0.027, 0.049)
	High strain	0.034 (−0.002, 0.070)	0.033 (−0.002, 0.069)	0.034 (−0.002, 0.070)	0.034 (−0.001, 0.070)
	Adjusted R2	0.324	0.328	0.328	0.333

Linear regression. Model I: Adjusted for age, gender, marital status, education and employment position; Model II: Model I + additionally adjusted for smoking, alcohol drinking and physical exercise; Model III: Model II + additionally adjusted for vegetable intake and fatty food intake; Model IV: Model III + additionally adjusted for BMI and hypertension.