Table 1 Characteristics of the study population (EPIC-Heidelberg, case-cohort sample)

N

163

362

310

426

348

Age at recruitment (years)

55.8 ± 6.4

51.4 ± 7.8

57.9 ± 5.2

49.1 ± 8.5

52.3 ± 7.1

Women (%)

37.4

100

Menopausal status (%)

 Premenopausal

31.5

48.6

 Postmenopausal

68.5

51.4

BMI (kg/m²)

27.2 ± 3.8

25.1 ± 4.4

26.9 ± 3.3

24.8 ± 4.4

26.5 ± 3.4

Waist circumference (cm)

93.5 ± 12.5

81.0 ± 11.3

96.2 ± 9.6

79.8 ± 11.0

95.2 ± 9.8

Smoking (%)

 Never

31.9

55.0

42.6

50.5

34.4

 Former

44.8

25.7

41.6

28.4

41.7

 Current

23.3

19.3

15.8

21.1

23.9

Physical activity (%)^a

 Inactive

12.3

11.6

11.6

9.9

11.8

 Moderately inactive

34.3

35.1

36.1

34.5

31.3

 Moderately active

27.0

26.5

29.7

29.8

29.6

 Active

26.4

26.8

22.6

25.8

27.3

Education level (%)

 Primary school

33.1

24.6

34.2

25.6

25.9

 Secondary school

34.4

48.6

32.9

51.2

33.0

 University degree

32.5

26.8

32.9

23.2

41.1

NSAID use (%)

9.2

2.5

8.7

2.1

6.0

Age at diagnosis (years)

62.3 ± 7.2

57.5 ± 7.8

64.5 ± 5.2

Stage at diagnosis (%)

 Local

40.5

62.2

70.7

 Regional

40.5

32.0

24.8

 Distant

19.0

2.2

3.2

 Unknown

-

3.6

1.3