Table 4

Post-test probability of group A β-haemolytic streptococcal (GABHS) pharyngitis

Points

Likelihood ratio

Pretest probability of GABHS pharyngitis (%)


5

10

15

20

25

30

35

40


≥ 1

1.16

6

11

17

22

28

33

38

44


≥ 2

1.76

8

16

24

31

37

43

49

54


≥ 3

2.68

12

23

32

40

47

53

59

64


4

3.85

17

30

40

49

56

62

67

72


Aalbers et al. BMC Medicine 2011 9:67   doi:10.1186/1741-7015-9-67

Open Data