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Table 5 Session product characteristics’ effects on symptom relief when using inhaled, dried Cannabis flower and treating cannabinoid measurements as categorical variables

From: The effectiveness of inhaled Cannabis flower for the treatment of agitation/irritability, anxiety, and common stress

  Overall sample Agitation/irritability Anxiety Stress
(1) (2) (3) (4)
THC 10–19%/dry wt. − 0.377** (0.123) − 0.472 (0.469) − 0.618*** (0.170) − 0.024 (0.167)
THC 20–30%/dry wt. − 0.345** (0.117) − 0.131 (0.452) − 0.599*** (0.165) 0.214 (0.162)
CBD 1–9%/dry wt. 0.007 (0.138) − 0.333 (0.217) 0.120 (0.152) 0.518 (0.411)
CBD 10–30%/dry wt. − 0.057 (0.188) − 0.270 (0.292) − 0.051 (0.199) 0.530 (0.409)
C. indica − 0.024 (0.106) − 0.163 (0.200) 0.037 (0.141) − 0.110 (0.174)
C. sativa 0.212* (0.104) 0.068 (0.243) 0.231 (0.131) − 0.227 (0.171)
Pipe 0.079 (0.260) 0.418 (0.646) − 0.41 (0.220) 0.116 (0.265)
Vape 0.146 (0.274) 0.634 (0.672) − 0.229 (0.257) 0.089 (0.313)
Session length (min) − 0.007*** (0.001) − 0.005* (0.002) − 0.007*** (0.001) − 0.008*** (0.001)
Baseline symptom intensity − 0.661*** (0.039) − 0.693*** (0.072) − 0.604*** (0.067) − 0.667*** (0.052)
Constant 0.219 (0.300) − 0.105 (0.848) 0.649 (0.350) − 0.402 (0.478)
Number of sessions 2306 422 998 886
Number of users 670 206 441 360
  1. Each column represents a separate regression. The outcome is the difference between the lowest reported symptom level within 4 h of initiating the session and the starting symptom level. The first column reports results for the whole sample, while columns 2 to 4 distinguish between specific distress-related symptoms reported. The omitted category for the THC categories is THC less than 10% and for the CBD categories is CBD equal to 0%. C. indica and C. sativa are relative to hybrid strains, and pipe and vape are relative to joint. All regressions are estimated using a fixed effects model and control for session length and baseline symptom intensity. Standard errors, clustered at the individual user level, are shown in parentheses
  2. ***p < 0.001, **p < 0.01, *p < 0.05