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Table 3 Validation of Eczema Case Definitions in the Validation Dataset n = 1495

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

1234

8

161

92.1 (85.0, 96.5)

88.5 (86.7, 90.1)

36.6 (33.1, 40.3)

99.4 (98.8, 99.7)

88.7 (87.0, 90.3)

1b

28

1328

73

67

27.7 (19.3, 37.5)

95.2 (93.9, 96.3)

29.5 (22.0, 38.2)

94.8 (94.2, 95.4)

90.6 (89.1, 92.1)

2

16

1379

85

16

15.8 (9.3, 24.5)

98.9 (98.1, 99.3)

50.0 (34.0, 66.0)

94.2 (93.7, 94.6)

93.3 (91.9, 94.5)

3

50

1165

51

230

49.5 (39.4, 59.6)

83.5 (81.5, 85.4)

17.9 (14.7, 21.5)

95.8 (95.0, 96.5)

81.2 (79.1, 83.2)

4

42

1190

59

205

41.6 (31.9, 51.8)

85.3 (83.3, 87.1)

17.0 (13.6, 21.1)

95.3 (94.5, 96.0)

82.4 (80.3, 84.3)

5

19

1361

82

34

18.8 (11.7, 27.8)

97.6 (96.6, 98.3)

35.9 (24.9, 48.6)

94.3 (93.8, 94.8)

92.3 (90.8, 93.6)

6

14

1359

87

36

13.9 (7.8, 22.2)

97.4 (96.5, 98.2)

28.0 (17.8, 41.1)

94.0 (93.5, 94.4)

91.8 (90.3, 93.1)

7

16

1392

85

3

15.8 (9.3, 24.5)

99.8 (99.4, 100)

84.2 (61.2, 94.7)

94.3 (93.8, 94.7)

94.1 (92.8, 95.3)

8

44

1325

57

70

43.6 (33.7, 53.8)

95.1 (93.8, 96.1)

38.6 (31.4, 46.4)

96.0 (95.2, 96.6)

91.7 (90.2, 93.0)

9

25

1360

76

35

24.8 (16.7, 34.3)

97.5 (96.5, 98.3)

41.7 (30.8, 53.4)

94.7 (94.1, 95.2)

92.6 (91.1, 93.9)

10

43

1197

58

198

42.6 (32.8, 52.8)

85.8 (83.9, 87.6)

17.8 (14.3, 22.0)

95.4 (94.6, 96.1)

82.9 (80.9, 84.8)

11

69

1282

32

113

68.3 (58.3, 77.2)

91.9 (90.3, 93.3)

37.9 (32.9, 43.2)

97.6 (96.8, 98.2)

90.3 (88.7, 91.8)

12

67

1147

34

248

66.3 (56.3, 75.4)

82.2 (80.1, 84.2)

21.3 (18.4, 24.4)

97.1 (96.2, 97.8)

81.2 (79.1, 83.1)

13

60

1310

41

85

59.4 (49.2, 69.1)

93.9 (92.5, 95.1)

41.4 (35.2, 47.8)

97.0 (96.2, 97.6)

91.6 (90.1, 92.9)

14

87

1249

14

146

86.1 (77.8, 92.2)

89.5 (87.8, 91.1)

37.3 (33.4, 41.5)

99.0 (98.2, 99.3)

89.3 (87.6, 90.8)

15

27

1347

74

48

26.7 (18.4, 36.5)

96.6 (95.5, 97.5)

36.0 (26.9, 46.3)

94.8 (94.2, 95.4)

91.8 (90.3, 93.2)

16

23

1355

78

40

22.8 (15.0, 32.2)

97.1 (96.1, 97.9)

36.5 (26.4, 48.0)

94.6 (94.0, 95.1)

92.1 (90.6, 93.4)

17

76

1297

25

98

75.3 (65.7, 83.3)

93.0 (91.5, 94.3)

43.7 (38.3, 49.2)

98.1 (97.4, 98.7)

91.8 (90.3, 93.1)

18

70

1283

31

112

69.3 (59.3, 78.1)

92.0 (90.4, 93.3)

38.5 (33.4, 43.8)

97.6 (96.9, 98.2)

90.4 (88.8, 91.9)

19

11

1368

90

27

10.9 (5.6, 18.7)

98.1 (97.2, 98.7)

29.0 (17.2, 44.4)

93.8 (93.4, 94.2)

92.2 (90.7, 93.5)

20

9

1374

92

21

8.9 (4.2, 16.2)

98.5 (97.7, 99.1)

30.0 (16.8,

47.7)

93.7 (93.4, 94.1)

92.5 (91.0, 93.7)

21

70

1285

31

110

69.3 (59.3, 78.1)

92.1 (90.6, 93.5)

38.9 (33.8, 44.3)

97.6 (96.9, 98.2)

90.6 (89.0, 92.0)

22

44

1325

57

70

43.6 (33.7, 53.8)

95.0 (93.7, 96.1)

38.6 (31.4, 46.4)

95.9 (95.1, 96.5)

91.5 (90.0, 92.9)

23

77

1263

24

132

76.2 (66.7, 84.1)

90.5 (88.9, 92.0)

36.8 (32.4, 41.5)

98.1 (97.4, 98.7)

89.6 (87.9, 91.1)