TABLE 2—

Descriptive Statistics and Demographics: California and Pennsylvania, 2015–2018

	Prelegalization, Mean (SD) or %	Postlegalization, Preimplementation, Mean (SD) or %	Postimplementation, Mean (SD) or %
Californiaa (n = 504)
Marijuana use	28.54	35.63	30.77
Age, y	19.24 (1.37)	20.16 (1.28)	20.62 (1.18)
Day of week
Monday	18.20	16.67	19.51
Tuesday	13.15	14.12	12.20
Wednesday	22.88	19.44	17.07
Thursday	12.61	13.89	6.10
Friday	16.58	17.82	21.95
Saturday	9.55	9.95	9.76
Sunday	7.03	8.10	13.41
Incarcerated	4.68	5.79	4.88
Pennsylvaniaa (n = 478)
Marijuana use	14.93	26.18	36.36
Age, y	19.04 (1.50)	19.98 (1.44)	20.05 (1.21)
Day of week
Monday	22.89	19.42	31.67
Tuesday	13.70	19.90	16.67
Wednesday	16.89	19.17	8.33
Thursday	14.82	14.81	6.67
Friday	16.14	14.32	10.00
Saturday	10.51	8.01	15.00
Sunday	5.07	4.37	11.67
Incarcerated	8.26	7.28	8.33

Note. Because our data were aligned and chunked by interview date (instead of interview wave), the final data set resembled an overlapping cohort design. As such, some participants had data during only 1 of the key time periods whereas others had data at each of the 3 key time periods. Specifically, 208 participants were interviewed during only 1 of the time periods, 640 were interviewed during 2 of the time periods, and 135 were interviewed during 3 of the time periods. All analyses statistically controlled for the repeated measurement design (i.e., the nesting of interviews within individuals).

^aRace/ethnicity (% White, Latino, and Black, respectively) was as follows: California: 17.60, 81.54, and 0.78; Pennsylvania: 10.16, 22.87, and 66.97. Parental education (% with less than a high school [HS] diploma, a HS diploma, and more than a HS diploma, respectively) was as follows: California: 41.89, 22.95, and 35.16; Pennsylvania: 19.05, 39.96, and 40.99.