Table 2.
Comparison of Sensitivity & Specificity in D-dimer at Admission, during hospital stay & Age adjusted values.
| Optimum D-dimer Values | Admission | On Max D-dimer during hospital stay (n = 483) | Age-adjusted D-dimer cutoff for Age>50 yrs (n = 370) |
|---|---|---|---|
| Cutoff point for D-dimer (μg/ml) | 1.44 | 2.01 | 2.1 |
| Area under curve (95% CI) | 0.683 (0.612–0.754) | 0.789 (0.7345–0.8425) | 0.7661 (0.7066–0.8256) |
| Sensitivity (%) | 60.5 | 73.3 | 76.5 |
| Specificity (%) | 74.0 | 70.0 | 63.5 |
| P-value | <0.01 | <0.01 | <0.01 |
| Likelihood ratio | 2.10 | 2.413 | 2.092 |
| Median D-dimer Value in total Incidence (μg/ml) | 0.82 | 1.14 | 1.54 |
| Median D-dimer Value in Survivors (μg/ml) | 0.76 | 0.945 | 1.14 |
| Median D-dimer Value in Non-Survivors (μg/ml) | 2.02 | 6.34 | 6.415 |