TABLE 4.
Efficiency of various parameters for diagnosis of DIC in patients suffering from acute infections
| Platelet < 1.50 lac/mm3 | PT > 15 sec | PTTK > 38 sec | TT >22 sec | Fibrinogen < 150 mg/dl | FDP > 10 µg/FEU/ml | FDP > 25µg/FEU/ml | |
|---|---|---|---|---|---|---|---|
| Positivity in Non DIC | 37/82 | 11/82 | 15/82 | 9/82 | 1/82 | 11/26 | 2/26 |
| Positivity in DIC | 9/14 | 9/14 | 11/14 | 7/14 | 3/14 | 14/14 | 14/14 |
| Sensitivity | 64.3 | 64.3 | 78.6 | 50.0 | 21.4 | 100* | 100* |
| Specificity | 54.8 | 86.5 | 81.7 | 89.0 | 98.7 | 57.6 | 92.3 |
| PV+ | 19.5 | 45.0 | 42.3 | 43.7 | 75.0 | 56.0 | 87.5 |
| PV- | 90.0 | 93.4 | 95.7 | 91.2 | 88.0 | 100.0* | 100.0* |
*
– Laboratory criteria of DIC was FDP > 25 µg/FEU/ml and D-dimer > 1 pg/FEU/ml; PV+ – Predictive value of positive test; PV-ve – Predictive value of negative test