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Table 1 The number of toxin EIA samples against a selection of NAAT CT value ranges with patient mortality within 1 month and 3 months

From: Can a toxin gene NAAT be used to predict toxin EIA and the severity of Clostridium difficile infection?

CT Value

EIA Toxin Positive a

Total EIA b

Mortality/month c

Mortality/3 months c

18

1 (100%)

1

1

1

19

4 (80%)

5

2

2

20

32 (84%)

38

7

12

21

80 (85%)

94

17

25

22

113 (80%)

140

16

29

23

119 (72%)

166

23

31

24

106 (67%)

157

27

39

25

96 (56%)

171

21

34

26

63 (50%)

125

12

19

27

52 (37%)

139

19

34

28

24 (27%)

89

7

13

29

23 (24%)

95

10

16

30

17 (20%)

83

8

16

31–37

24 (7%)

347

41

60

All

754 (46%)

1650

210

331

18–25

551 (72%)

772

113

173

26–37

203 (23%)

878

97

158

  1. a All samples are GDH, NAAT and toxin A and B EIA positive
  2. b Total number of toxin A and B EIAs undertaken from GDH and NAAT positive samples including both negative and positive results for toxin A and B
  3. c Reflects the number of patients with 1 month or 3-month mortality