A Study on the Reliability of an On-Site Oral Fluid Drug Test in a Recreational Context

Table 6

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.