Table 4 BIMCV independent test set – performance indices [%].

From: CIRCA: comprehensible online system in support of chest X-rays-based screening by COVID-19 example

Index

N1

N2

N3

Normal

P1

P2

P3

Pneumonia

C1

C2

C3

COVID-19

Sensitivity

91.54

70.15

62.15

74.61

69.23

42.05

35.71

49.00

92.74

84.34

36.11

71.06

Specificity

99.25

99.57

96.92

98.58

99.03

99.78

88.99

95.93

99.81

93.85

93.57

95.74

NPV

96.34

93.87

84.26

91.49

99.95

99.88

96.75

98.86

99.81

98.48

97.85

98.71

PPV

98.20

97.25

90.62

95.36

9.47

27.61

13.10

16.73

92.91

55.94

15.29

54.71

Balanced Accuracy

95.40

84.86

79.54

86.60

84.13

70.91

62.35

72.46

96.28

89.10

64.84

83.41