Table 2. Background characteristics for the total study population and the subgroup perceiving high work-related stress.

Variable		Total		High work-related stress1
		n	%	n	%	p-value2
Total		232		102	44
Sex	Women	153	66	77	50	0.007
	Men	79	34	25	32
Age	18–30	41	18	17	41	0.639
	31–50	117	50	55	47
	51–64	74	32	30	41
Educational level3	University	103	44	55	53	0.025
	High school	106	46	41	39
	Elementary school	22	10	6	27
Occupational class3	High-level non-manual	42	18	20	48	0.503
	Medium/low non-manual	100	43	47	47
	Skilled/unskilled manual	89	38	35	39
Marital status4	Not single	185	80	78	42	0.176
	Single	45	19	24	53
Registered sick leave prior year	Yes	28	11	12	43	0.900
	No	204	89	90	44
Employer	Public	102	44	50	49	0.057
	Private	130	56	52	40

¹ Perceiving stressors or stress within at least two of the four dimensions included in the Work Stress Questionnaire.

² Pearson chi-squared test for patients having high compared to low work-related stress.

³ One missing value

⁴ Two missing values