TABLE 2.
Positive predictive values for ISTH DIC score ≥5
|
DIC‐positive cases (overt DIC) |
DIC‐positive cases (overt and subclinical DIC) |
DIC‐negative cases b | |||
|---|---|---|---|---|---|
| DIC score | Ratio a |
PPV, % (95% CI) |
Ratio a |
PPV, % (95% CI) |
No. of cases (%) |
| Overall | 152/225 | 68 (61‐74) | 186/225 | 83 (77‐87) | 39 (17) |
| 5 | 35/75 | 47 (35‐59) | 56/75 | 75 (63‐84) | 19 (25) |
| 6 | 51/75 | 68 (56‐78) | 60/75 | 80 (69‐88) | 15 (20) |
| ≥7 | 66/75 | 88 (78‐94) | 70/75 | 93 (85‐98) | 5 (8) |
Abbreviations: CI, confidence interval; DIC, disseminated intravascular coagulation; PPV, positive predictive value.
a
Number of patients classified correct/total number of medical record reviews.
b
These included liver disease, hematological disease, congestive heart failure, medical treatments (eg, warfarin, chemotherapy), immune thrombocytopenia, or thrombotic thrombocytopenia purpura/hemolytic uremic syndrome.