Table 1.

Characteristics of study subjects (n = 2141).

Variables		Men (n = 858)	Women (n = 1283)	p-Value
Age (years)		34.346 ± 7.945	34.885 ± 8.492	0.1346
Marital status	Single (unmarried, divorced, or widowed)	294 (34.27%)	432 (33.67%)	0.7758
	Married	564 (65.73%)	851 (66.33%)
Education	College or below	674 (78.55%)	1071 (83.48%)	0.0041
	University or above	184 (21.45%)	212 (16.52%)
Employment position	Low (without managerial responsibility)	581 (67.72%)	1058 (82.46%)	<0.0001
	High (with managerial responsibility)	277 (32.28%)	225 (17.54%)
Smoking	Yes	279 (32.52%)	7 (0.55%)	<0.0001
	No	579 (67.48%)	1276 (99.45%)
Alcohol drinking	Yes	193 (22.49%)	17 (1.33%)	<0.0001
	No	665 (77.51%)	1266 (98.67%)
Physical exercise	Yes	223 (25.99%)	545 (42.48%)	<0.0001
	No	635 (74.01%)	738 (57.52%)
Vegetable intake	Seldom or sometimes	497 (57.93%)	515 (40.14%)	<0.0001
	Everyday	361 (42.07%)	768 (59.86%)
Fatty food intake	Seldom or sometimes	713 (83.10%)	1051 (81.92%)	0.4813
	Everyday	145 (16.90%)	232 (18.08%)
Body mass index (BMI)	Obese (BMI > 30)	42 (4.90%)	102 (7.95%)	0.0008
	Overweight (BMI > 25 and < 30)	226 (26.34%)	268 (20.89%)
	Normal (BMI < 25)	590 (68.76%)	913 (71.16%)
Hypertension	No	693 (80.77%)	1139 (88.78%)	<0.0001
	Yes	165 (19.23%)	144 (11.22%)
Demand		33.871 ± 5.655	35.128 ± 6.188	<0.0001
Control		73.608 ± 10.897	69.230 ± 11.795	<0.0001
Demand/control (D/C) ratio		0.941 ± 0.216	1.046 ± 0.279	<0.0001
Arterial stiffness index		−0.637 ± 0.292	−0.442 ± 0.330	<0.0001

Continuous variables are expressed as mean ± standard deviation (SD) and categorical variables are expressed as number (percent). Statistical analysis was performed with Student’s t test for continuous variables and chi-square test for categorical variables.