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Table 2 Cannabis use characteristics amongst patients reporting past-month cannabis use (n = 1178)

From: The association between cannabis use and outcome in pharmacological treatment for opioid use disorder

Cannabis use characteristic Statistic
Daily use; n (%) 798 (67.7%)
Age of first cannabis use in years; mean (SD) 14.2 (4.5)
Age at first regular cannabis use in years (defined as use at least twice monthly); mean (SD) 16.7 (6.9)
Self-reported cannabis side effects; n (%) 583 (49.5%)
Type of side effects reported amongst individuals reporting cannabis-related side effectsa; n (%)  
 Sexual problems 2 (0.3%)
 Weight gain 28 (4.8%)
 Paranoia 62 (10.6%)
 Hallucinations 10 (1.7%)
 Lack of motivation 101 (17.3%)
 Slower thought process 153 (26.2%)
 Decreased school/work performance 86 (14.8%)
 Other 141 (24.2%)
 Marijuana cravings score; mean (SD) 37.4 (16.3)
Self-reported impact of cannabis on MAT  
 No impact 881 (74.9%)
 Helps with opioid cravings 81 (6.9%)
 Helps with opioid withdrawal symptoms 98 (8.3%)
 Helps with MAT dose 14 (1.2%)
 Helps with pain management 17 (1.4%)
 Increases effect of MAT 31 (2.6%)
 Other positive effects 82 (7%)
 Worsens OUD symptoms 28 (2.4%)
 Unsure 15 (1.3%)
  1. SD standard deviation, MAT medication-assisted treatment, OUD opioid use disorder
  2. aParticipants were able to report only one primary side effect experienced