Table 2: We can estimate the pretest probability with the

Diamond and Forrester pretest probability data.

Age (years)

High

> 70%

Typical angor

Intermediate

10-70%

Atypical angor

Low

< 10%

Non angina pain

M

F

M

F

M

F

30-39

59

28

29

10

18

5

40-49

69

37

38

14

25

8

50-59

77

47

49

20

34

12

60-69

84

58

59

28

44

17

70-79

89

68

69

37

54

24

> 80

93

76

78

47

65

32

It uses three variables: age, sex, and the type of pain, whether it is characteristic of angina pectoris. Numbers show the risk of coronary artery disease.