Table V.

Number of Detections and Concentrations of the Other Drugs Most Frequently Detected in All the Designer Benzodiazepine Cases [Living cases (N = 554) and Autopsy Cases (N = 21)]

	DUID cases/other offences			Autopsy cases
	Number of detections	Median conc. (mg/L)	IQRa	Number of detections	Median conc. (mg/L)	IQRa
Amphetamine	327	0.31	0.55	9	0.39	1.2
THC (tetrahydrocannabinol)	275	0.0027	0.0042	11	0.0056	0.0093
Clonazepam	201	0.015	0.028	5	0.026	0.028
Methamphetamine	117	0.23	0.49	5	0.44	1.6
N-desmethyldiazepamb	111	0.16	0.24	5	0.094	0.71
Alprazolam	89	0.020	0.033	4	0.023	0.065
Ethanolc	88	1.0	1.4	5	0.74	0.89
Diazepam	86	0.22	0.29	4	0.13	2.6
Lorazepamd	75	0.018	0.016	—	—	—
MDMA (ecstasy)	56	0.20	0.26	2	0.44	—
Cocaine	35	0.066	0.10	2	0.019	—

^aInterquartile range.

^bMetabolite of diazepam.

^cConcentrations in g/L.

^dMetabolite of diclazepam.