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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