Table 1:
Adjusted multi-level regression of state-level MCL knowledge by age, MCL status, and cannabis dispensaries
| MCL Status | Correct knowledge of MCL status, Est [95% CI] | Differences by age, Est [95% CI] | ||||
|---|---|---|---|---|---|---|
| Ages 12-17 | Ages 18-25 | Ages 26+ | 12-17 vs. 18-25 | 12-17 vs. 26+ | 18-25 vs. 26+ | |
| Model 1 a | ||||||
| Never MCL | 57.66 [54.26, 61.05] | 72.99 [69.60, 76.38] | 75.98 [72.58, 79.37] | −15.33*** [−16.53, −14.14] | −18.32*** [−19.51, −17.13] | −2.99*** [−4.18, −1.79] |
| Before MCL | 60.81 [56.80, 64.82] | 75.82 [71.81, 79.83] | 77.89 [73.88, 81.90] | −15.01*** [−17.01, −13.01] | −17.09*** [−19.08, −15.09] | −2.08* [−4.07, −0.08] |
| After MCL | 36.84 [33.01, 40.68] | 48.82 [44.98, 52.66] | 45.41 [41.57, 49.25] | −11.98*** [−13.69, −10.26] | −8.57*** [−10.28, −6.85] | +3.41** [1.70, 5.13] |
| After vs. before MCL | −23.96*** [−26.54, −21.39] | −26.99*** [−29.57, −24.42] | −32.48*** [−35.06, −29.91] | -- | -- | -- |
| Before vs. never MCL | +3.15 [−2.30, 8.60] | +2.83 [−2.62, 8.28] | +1.92 [−3.54, 7.37] | -- | -- | -- |
| Model 2 a | ||||||
| Never MCL | 58.28 [55.72, 60.84] | 73.61 [71.05, 76.17] | 76.60 [74.04, 79.16] | −15.33*** [−16.45, −14.21] | −18.32*** [−19.44, −17.20] | −2.99*** [−4.11, −1.87] |
| Before MCL | 59.12 [55.97, 62.26] | 74.04 [70.89, 77.19] | 76.07 [72.92, 79.22] | −14.92*** [−16.80, −13.05] | −16.95*** [−18.83, −15.08] | −2.03* [−3.90, −0.16] |
| After MCL, no dispensaries | 33.79 [30.68, 36.91] | 43.40 [40.28, 46.51] | 38.61 [35.50, 41.73] | −9.61*** [−11.66, −7.55] | −4.82*** [−6.88, −2.77] | +4.78*** [2.73, 6.84] |
| After MCL with dispensaries | 41.52 [38.14, 44.90] | 57.30 [53.92, 60.68] | 56.09 [52.71, 59.47] | −15.79*** [−18.39, −13.18] | −14.57*** [−17.18, −11.96] | +1.21 [−1.40, 3.82] |
| After vs. before dispensaries | +7.73*** [5.09, 10.37] | +13.91*** [11.26, 16.55] | +17.48*** [14.84, 20.12] | -- | -- | -- |
Notes: state-level aggregated data were obtained from the National Survey on Drug Use and Health 2004-2013. MCL=medical cannabis law; Est=estimate; CI=confidence interval. Models were adjusted for state demographic variables from the 2000 and 2010 US Census, and time.
***
p<0.0001
**
p<0.01
*
p<0.05.
Bonferroni correction significance level p<0.0017 (i.e., p<0.05/30) in bold.