Table 1 Cohort description

N

Age (Mean [SD])

69.8 [7.5]

69.7 [7.4]

69.8 [7.1]

Gender (%)

  female

35.9

35.6

34.2

  male

64.1

64.4

65.8

Retired (%)

  yes

96.5

95.4

96.8

  no

3.5

3.4

3.2

Highest educational level (%)

   <10 years

66.7

66.0

63.5

  ≥10 years

32.3

32.8

35.6

  no school qualification

1.2

1.2

0.9

Case groups (%)

  coronary artery disease

78.1

78.9

80.0

  angina pectoris

7.8

8.0

8.9

  cardiomyopathy

3.7

3.8

3.5

  myocarditis

0.4

0.4

0.3

  arterial hypertension

50.4

50.6

50.5

  heart valve disease

7.8

7.9

7.8

  other cardiac disease

20.5

20.5

19.4

Acute events and operations (%)

  heart attack

42.2

42.7

42.6

  PTCA

36.7

37.6

38.0

  CABG

40.8

40.6

41.7

  valve repair

17.8

17.9

17.3

Sypmtom onset (%)

  acute event

24.6

24.8

25.5

  <1 year

35.4

35.3

35.6

  1–2 years

11.0

10.9

10.9

  3–5 years

9.7

9.5

9.3

  6–10 years

5.8

5.9

5.3

  >10 years

8.4

8.3

8.2

  cannot be assessed

5.1

5.2

5.2