Table 2. Sociodemographic variables and duration of symptoms.

Group	P12 group (n=140)		P20 group (n=70)
	%	Mean±SD	%	Mean±SD
Age (year)		59.5±7.7		50.2±9.9
Years of symptoms		12.1±9.7		10.0±9.0
Marital status
Married	58.6		58.0
Divorced	9.3		18.8
In relationship	NA		14.5
Never married	25.5		7.2
Widowed	5.7		—
No information	0.7		1.4
Employment status
Working	32.9		42.0
Sick listed	12.9		14.5
Unemployed	5.0		13.0
Pensioned	27.1		14.5
Homemaker	19.3		14.5
No information	2.8		1.4
Education (year)
<9	2.1		1.4
9	48.5		34.8
10	21.4		30.4
12-13	7.9		10.1
>13	15.7		21.7
No information	4.3		1.4
Total family income in euros per month
<500	4.3		10.1
500-1000	8.6		23.2
1000-2000	36.4		23.2
2000-3000	21.4		10.1
>3000	19.3		26.1
No information	10.0		7.2
SD: Standard deviation; NA: Not applicable.