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Table 4 Performances of the eight CAP definition patterns applied to the 319 patients of the ESCAPED database for the diagnosis of CAP

From: High heterogeneity in community-acquired pneumonia inclusion criteria: does this impact on the validity of the results of randomized controlled trials?

CAP definition pattern

Number of included patients among the 319 Escaped patients

True Positive

False Negative

False Positive

True Negative

Sensitivity (%)

Specificity (%)

Positive Predictive Value (%)

Negative Predictive Value (%)

Positive likelihood ratio

Negative likelihood ratio

1

61

51

112

10

146

31.3

93.6

83.6

55.6

4.88

0.73

2

103

77

86

26

130

47.2

83.3

74.8

60.2

2.83

0.63

3

187

119

44

68

88

73.0

56.4

63.6

66.7

1.67

0.48

4

170

110

53

60

96

67.5

61.5

64.7

64.4

1.75

0.53

5

178

116

47

62

94

71.2

60.3

65.2

66.7

1.79

0.48

6

20

16

147

4

152

9.8

97.4

80.0

50.8

3.84

0.93

7

50

38

125

12

144

23.3

92.3

76.0

53.5

3.03

0.83

8

103

71

92

32

124

43.6

79.5

68.9

57.4

2.12

0.71