Table 2 The distribution (%) of the variables n = 6 353; number of deaths = 579; follow-up on average 17 years. Test of distribution by chi-2

Variable

Level

% (n = 1639)

% (n = 3880)

% (n = 834)

% (n = 6353)

Total

25.8

61.1

13.1

100

Age (mean)

Continuous

56.9

56.3

55.7

56.4

Education

Low

37.8

20.2

13.0^*)

23.8

Middle/High

62.2

79.8

87.0

76.2

Partnership status

Married

65.9

75.1

71.9^*

72.3

Single/divorced/widow

34.1

24.9

28.1

27.7

Fitness

Poor

23.3

16.1

16.5^*

18.0

Middle/Good

76.7

83.9

83.5

82.0

Smoking

Non-smoker

64.1

60.1

43.7^*)

59.0

Former smoker

13.9

21.9

27.6

20.5

Daily smoker

22.0

18.0

28.7

20.5

BMI

Underweight

1.5

1.0

1.2^*

1.2

Normal

39.7

53.6

57.4

50.5

Overweight

36.8

34.0

32.6

34.5

Obese

22.0

11.4

8.9

13.8

Diabetes

Yes

3.8

1.9

1.3^*

2.3

No

96.2

98.1

98.7

97.7

Ischemic heart disease (before screening)

Yes

2.1

1.5

0.7^**

1.5

No

97.9

98.5

99.3

98.5