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Table 2 Validation of Eczema Case Definitions in the Test Dataset n = 408

From: Validation of a primary care electronic medical records case definition for eczema: retrospective cross-sectional study

Case Definition

True Positive

True Negative

False Negative

False Positive

SE

SP

PPV

NPV

ACC

1

93

282

8

25

92.1 (85.0, 96.5)

91.9 (88.2, 94.7)

78.8 (71.8, 84.5)

97.2 (94.8, 98.6)

91.9 (88.8, 94.4)

1b

28

305

73

2

27.7 (19.3, 37.5)

99.4 (97.7, 99.9)

93.3 (77.3, 98.3)

80.7 (78.7, 82.5)

81.6 (77.5, 85.3)

2

16

305

85

2

15.8 (9.3, 24.5)

99.4 (97.7, 99.9)

88.9 (65.2, 97.2)

78.2 (76.7,

79.6)

78.7 (74.4, 82.6)

3

50

269

51

38

49.5 (39.4, 59.6)

87.6 (83.4, 91.1)

56.8 (47.9, 65.3)

84.1 (81.2, 86.5)

78.2 (73.9, 82.1)

4

42

269

59

38

41.6 (31.9, 51.8)

87.6 (83.4, 91.1)

52.5 (43.1, 61.7)

82.0 (79.4, 84.4)

76.2 (71.8, 80.3)

5

19

306

82

1

18.8 (11.7, 27.8)

99.7 (98.2, 100)

95.0 (72.0, 99.3)

78.9 (77.3, 80.4)

79.7 (75.4, 83.5)

6

14

306

87

1

13.9 (7.8, 22.2)

99.7 (98.2, 100)

93.3 (65.1, 99.1)

77.9 (76.5, 79.2)

78.4 (74.1, 82.3)

7

16

307

85

0

15.8 (9.3, 24.5)

100 (98.8, 100)

100

78.3 (76.9, 79.7)

79.2 (74.9, 83.0)

8

44

305

57

2

43.6 (33.7, 53.8)

99.4 (97.7, 99.9)

95.7 (84.5, 98.9)

84.3 (81.8, 86.4)

85.5 (81.8, 88.8)

9

25

305

76

2

24.8 (16.7, 34.3)

99.4 (97.7, 99.9)

24.8 (20.6, 29.2)

80.1 (78.2, 81.8)

80.9 (76.7, 84.6)

10

43

269

58

38

42.6 (32.8, 52.8)

87.6 (83.4, 91.1)

53.1 (43.8, 62.2)

82.3 (79.6, 84.7)

76.5 (72.1, 80.5)

11

69

288

32

19

68.3 (58.3, 77.2)

93.8 (90.5, 96.2)

78.4 (69.7, 85.1)

90.0 (87.1, 92.3)

87.5 (83.9, 90.6)

12

67

257

34

50

66.3 (56.3, 75.4)

83.7 (79.1, 87.7)

57.3 (50.1, 64.2)

88.3 (85.1, 90.9)

79.4 (75.2, 83.2)

13

60

289

41

18

59.4 (49.2, 69.1)

94.1 (90.9, 96.5)

76.9 (67.4, 84.3)

87.6 (84.8, 89.9)

85.5 (81.8, 88.8)

14

87

288

14

19

86.1 (77.8, 92.2)

93.8 (90.5, 96.2)

82.1 (74.6, 87.7)

95.4 (92.7, 97.1)

91.9 (88.8, 94.4)

15

27

301

74

6

26.7 (18.4, 36.5)

98.1 (95.8, 99.3)

81.8 (65.7, 91.4)

80.3 (78.3, 82.1)

80.4 (76.2, 84.1)

16

23

301

78

6

22.8 (15.0, 32.2)

98.1 (95.8, 99.3)

79.3 (61.6, 90.2)

79.4 (77.6, 81.1)

79.4 (75.2, 83.2)

17

76

288

25

19

75.3 (65.7, 83.3)

93.8 (90.5, 96.2)

80.0 (71.8, 86.3)

92.0 (89.1, 94.2)

89.2 (85.8, 92.1)

18

70

286

31

21

69.3 (59.3, 78.1)

93.2 (89.7, 95.7)

76.9 (68.4, 83.7)

90.2 (87.3, 92.5)

87.3 (83.6, 90.3)

19

11

306

90

1

10.9 (5.6, 18.7)

99.7 (98.2, 100)

91.7 (59.0, 98.8)

77.3 (76.1, 78.5)

77.7 (73.3, 81.6)

20

9

306

92

1

8.9 (4.2, 16.2)

99.7 (98.2, 100)

90.0 (53.6, 98.6)

76.9 (75.8, 78.0)

77.2 (72.8, 81.2)

21

70

288

31

19

69.3 (59.3, 78.1)

93.8 (90.5, 96.2)

78.7 (70.1, 85.3)

90.3 (87.4, 92.6)

87.8 (84.2, 90.8)

22

44

305

57

2

43.6 (33.7, 53.8)

99.4 (97.7, 99.9)

95.7 (84.5, 98.9)

84.3 (81.8, 86.4)

85.5 (81.8, 88.8)

23

77

288

24

19

76.2 (66.7, 84.1)

93.8 (90.5, 96.2)

80.2 (72.1, 86.4)

92.3 (89.4, 94.5)

89.5 (86.1, 92.3)