Table 3.

Population characteristics.

Study Sample	Male		Female		Total		p-value
	Years	SD	Years	SD	Years	SD
Age (Mean)	47.61	11.39	50.19	12.98	48.53	12.02	0.93
Age Group	N	%	N	%	N	%	0.43
under 20	1	0.6	0	0.0	1	0.4
20–29	10	5.8	6	6.3	1	6.0
30–39	28	16.2	14	14.7	42	15.7
40–49	57	32.9	22	23.2	79	29.5
50–59	55	31.8	27	28.4	82	30.6
60–69	17	9.8	21	22.1	38	14.2
70–79	5	2.9	5	5.3	10	3.7
Citizenship	N	%	N	%	N	%	0.267
Swiss	162	93.6	92	96.8	254	94.8
Liechtenstein	2	1.2	0	0	2	0.7
Other	9	5.2	3	3.2	12	4.5
Educational Status	N	%	N	%	N	%	0.578
Apprenticeship	95	54.9	40	42.1	135	50.4
Vocational school	22	12.7	15	15.8	37	13.8
No graduation	3	1.7	7	7.4	10	3.7
Higher school certificate	3	1.7	1	1.1	4	1.5
Grade school	5	2.9	10	10.5	15	5.6
College or university	24	13.9	4	4.2	28	10.4
Unknown	21	12.4	18	18.9	39	14.6
Marital Status	N	%	N	%	N	%	0.042
Never married	49	28.3	28	29.5	77	28.7
Married/Common law	86	49.7	34	35.8	120	44.8
Widowed	1	0.6	5	5.3	6	2.2
Divorced	20	11.6	15	15.8	35	13.1
Separated	3	1.7	0	0	3	1.1
Unknown	14	8.1	13	13.6	27	10.1

Data are n (%) or mean (SD), unless noted otherwise. Categorical values were compared with chi-squared test and metric variables with t-test.

SD, standard deviation.