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Performance data of DrugWipe 5A in comparison with HS-SPME-GC-MS results.
| Cannabis | Amphetamines | Cocaine | Opiates | |
|---|---|---|---|---|
| TP | 14 | 26 | 16 | 2 |
| FP | 4 | 7 | 3 | 7 |
| TN | 30 | 43 | 56 | 72 |
| FN | 35 | 7 | 8 | 2 |
|
| ||||
| Number of tests | 83 | 83 | 83 | 83 |
|
| ||||
| Sensitivity (%) | 29 | 79 | 67 | 50 |
| Specificity (%) | 88 | 86 | 95 | 91 |
| Accuracy (%) | 53 | 83 | 87 | 89 |
TP, true positive; FP, false positive; TN, true negative; FN, false negative.
