Table 5 First dose and effect duration
From: Clinical pattern of synthetic cannabinoids users in Upper Egypt: cross-sectional study
|  | Mean ± SD | P value |
|---|---|---|
First dose received (Subjective number of breaths) | 2.46 ± 0.86 breaths | 0.001* > |
Duration of effect in first exposure | 32.9 ± 23.8 min | |
Maximum dose | 4 ± 2.7 cigarettes/day |  |
Range of first dose duration: 7–90 min | ||