Table 2 Concentration of benzodiazepines in oral fluid from drivers who tested positive
Benzodiazepines and metabolites confirmed | N (2785) | % | Median (Q1-Q3) ng/mL |
|---|---|---|---|
7-Aminoflunitrazepam | 0 | 0 | – |
Clonazepam | 121 | 4.3 | 2.70 (1.69–9.75) |
Flunitrazepam | 6 | 0.2 | 3.65 (3.17–6.97) |
Alprazolam | 1305 | 46.9 | 7.50 (2.90–23.30) |
Oxazepam | 118 | 4.2 | 8,34 (5.27–17.35) |
Lorazepam | 168 | 6.0 | 22.35 (11.22–102.93) |
Nordiazepam | 1527 | 54.8 | 6.60 (2.40–17.80) |
Diazepam | 308 | 11.1 | 10.10 (6.08–26.40) |
7-Aminoclonazepam | 0 | 0 | – |