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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