Table 1.

Socio-demographic characteristics of informants (n = 24) in Västerbotten, Sweden

Couple no.	Females		Males		Living area
	Age (yrs)	Highest education	Age (yrs)	Highest education
1	28	Secondary school1	27	Secondary school	Rural area
2	31	Secondary school	26	Secondary school	Rural area
3	25	Secondary school	29	Secondary school	Village
4	33	Secondary school	30	Secondary school	Village
5	31	University2	30	University	Small town
6	31	Secondary school	34	University	Small town
7	33	University	31	University	Small town
8	29	University	35	University	Small town
9	35	University	34	University	Suburb
10	32	Secondary school	31	Secondary school	Suburb
11	35	University	39	University	Suburb
12	32	Secondary school	46	Secondary school	Suburb

Occupations are listed in alphabetical order to secure informant confidentiality.

Female: Administrator, banking adviser, granted sick leave, hair dresser, industrial worker, manual worker, nurse (n = 2), office employee, pre-school teacher, primary school teacher and university project assistant.

Male: Accountant consultant, computer engineer, consultant worker, finance manager, high school teacher, industrial purchaser, industrial worker (n = 2), manager, programmer and salesman.

¹12 years of schooling

²15-17 years of schooling