. 2018 Apr 2;178(5):667–672. doi: 10.1001/jamainternmed.2018.0266

Table 1. Daily Doses Prescribed for All Opioids^a.

Variable^b	Coefficient (95% CI)^c	Percentage Change	P Value
Modeling any type of MCL as 1 variable
MCL in effect	−2.211 (−4.574 to 0.152)	−8.5	.06
Modeling MCL by type with separate variables
Medical cannabis dispensary open	−3.742 (−6.289 to −1.194)	−14.4	.005
Medical cannabis home cultivation allowed	−1.792 (−3.532 to −0.052)	−6.9	.04

Abbreviation: MCL, medical cannabis law.

^{^a}

There were 306 observations for each model. Ordinary least-squares regression coefficients from models in which the dependent variables are total opioid prescriptions. Percentage changes from the average “no MCL” state level of prescribing are in parentheses. Data are aggregated to all prescriptions in opioid category by state and year.

^{^b}

The MCL coefficient from a model in which MCL is measured as being any type. Variables included in all models but not shown in this table: whether state has adopted legal recreational cannabis, whether the state has an operational electronic prescription drug monitoring program; Herfindahl index of physician market competition, percentage of the population below the poverty line, percentage of population enrolled in Medicare, percentage of Medicare in Medicare Advantage plans, total state population, a time trend, and state fixed effects.

^{^c}

MCL coefficients from a model in which dispensary-based or home cultivation only MCLs are measured separately.

Table 1. Daily Doses Prescribed for All Opioidsa.

Table 1. Daily Doses Prescribed for All Opioids^a.