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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
  1. P value is significant at ≤ 0.05