Table 1.

Descriptive Statistics.

Variable	Mean	Std. Dev	Minimum	Maximum
Panel A: Subtypes (983 sessions, 378 users)
Hybrid	0.33	0.47	0	1
C. indica	0.60	0.49	0	1
C. sativa	0.06	0.24	0	1
Panel B: Combustion Method (996 sessions, 385 users)
Joint	0.13	0.34	0	1
Pipe	0.38	0.48	0	1
Vape	0.49	0.50	0	1
Panel C: THC (353 sessions, 143 users)
% THC	0.19	0.54	0.02	0.35
THC < 10%	0.05	0.22	0	1
THC 10–19%	0.50	0.50	0	1
THC 20–34%	0.45	0.50	0	1
Panel D: CBD (119 sessions, 281 users)
% CBD	0.60	0.54	0	0.30
CBD 0%	0.19	0.39	0	1
CBD 1–9%	0.51	0.50	0	1
CBD 10–34%	0.30	0.46	0	1
Panel E: Outcome and Control Variables (1056 sessions, 409 users)
Symptom Change	−4.5	2.7	−10	9
Starting Symptom Level	6.6	2.1	1	10
Ending Symptom Level	2.2	2.1	0	10
Panel F: Side Effects (1215 sessions, 359 users)
Any Negative Side Effect	0.57	0.50	0	1
% of Negative Side Effects	0.10	0.13	0	1
Any Positive Side Effect	0.95	0.23	0	1
% of Positive Side Effects	0.21	0.15	0	1
Any Context-Specific Side Effect	0.86	0.35	0	1
% of Context-Specific Side Effects	0.24	0.19	0	1

Note: The different types of variables are grouped in Panels A through F, with the number of sessions and users for whom that information is available listed in parentheses. For each variable in each panel, we report the mean, standard deviation, minimum, and maximum values for that variable. Our variables are all dichotomous {0, 1} with the exception of THC, CBD, and the % of side effects variables, which are percentages range from 0 to 1, and the symptom relief measures, which are measured on a 0 to 10 scale with 0 being no discernable symptom level and 10 extreme symptom severity. Symptom change is measured as the ending symptom minus the starting symptom level for a range between −10 and 9. Starting symptom levels are restricted to range from 1 to 10, while ending symptom levels range from 0 to 10. Nineteen positive, thirteen negative, and ten context-specific side effects were available for selection in Panel F.