Table 1:

Distribution of Covariates in the Trial vs. Population and their Absolute Standardized Mean Difference (ASMD) pre and post-weighting

	CSP-1025 (trial)	TEDS-A-2014 (population)	ASMD (pre-weighting)	ASMD (post-weighting)
Age
12-14	0.00	0.01	0.04	0.04
15-17	0.00	0.02	0.13	0.13
18-20	0.02	0.04	0.11	0.06
21-24	0.04	0.12	0.26	0.10
25-29	0.14	0.20	0.16	0.08
30-34	0.12	0.21	0.21	0.14
35-39	0.24	0.15	0.27	0.24
40-44	0.18	0.10	0.25	0.21
45-49	0.17	0.08	0.35	0.06
50-54	0.07	0.05	0.11	0.11
55 +	0.01	0.03	0.07	0.15
Sex
Male	0.64	0.54	0.20	0.03
Race
Black	0.02	0.04	0.10	0.08
White	0.83	0.74	0.21	0.10
Native Hawaiian	0.03	0.01	0.15	0.04
Other	0.10	0.18	0.21	0.09
Ethnicity
Hispanic/Latino	0.10	0.21	0.27	0.45
Not Hispanic/Latino	0.86	0.78	0.19	0.45
Marital Status
Married/Partnered	0.23	0.09	0.46	0.07
Education
9-11 years	0.10	0.29	0.42	0.24
12 years	0.40	0.45	0.10	0.07
13-15 years	0.33	0.17	0.43	0.31
16 + years	0.15	0.03	0.70	0.04
Employment
Not in labor force	0.07	0.38	0.64	0.46
Part-time	0.25	0.07	0.70	0.09
Unemployed	0.24	0.45	0.41	0.33
Methamphetamine Used in Past Week
Yes	0.91	0.42	0.99	0.81