Table 1 Characteristics of the 7372 Danish breast cancer women (by cancer stage) and the 213,276 controls

N

3769

3603

213,276

Age, years, mean

50.47

50.47

50.47

Danish, percent

95

95

95

Civil status

Married, percent

70

70

69

Single, percent

23

21

22

Cohabiting, percent

7

8

9

Children

Proportion with no children at age 30, percent

27

28

24

Education

Compulsory education, percent

26

27

29

Vocational education, percent

37

36

37

Further education, percent

37

37

33

Income(gross income)

Change in income t-2 to t + 3, 1000 DKK, mean

−1.19

−3.87

5.36

Income t-2, 100,000 DKK, mean

2.41

2.39

2.31

Out of labour force t-2, percent

6

7

7

Health indicators

Hospitalization 2–5 years before baseline, percent

47

46

45

Drugs for somatic diseases 2–5 years before baseline, percent

69

67

66

Drugs for mental health 2–5 years before baseline, percent

23

21

18

GP contacts 2–5 years before baseline, number, mean

6.42

6.21

6.04