. Author manuscript; available in PMC: 2022 May 1.

Published in final edited form as: Health Econ. 2021 Feb 23;30(5):989–1000. doi: 10.1002/hec.4237

TABLE 4.

Effects of medical marijuana laws (MML) and recreational marijuana laws (RML) on other opioid-related outcomes

Marginal effects	Morphine milligram equivalent (MME) per pain patient prescribed opioids	MME per nonpain patient prescribed opioids	# Pain patients prescribed opioids per 1000 enrollees	# Nonpain patients prescribed opioids per 1000 enrollees
MML in effect	−96.19^** (34.67)	−159.72^*** (44.20)	−0.23^** (0.09)	0.03 (0.06)
RML in effect	−149.25^* (64.64)	−88.95 (88.61)	−1.37^*** (0.22)	−0.83^*** (0.15)
Baseline predicted mean	1436.52	1729.37	12.94	8.60
# Observations	4200	4200	4200	4200
R-squared	0.80	0.73	0.94	0.93

Source: Truven Health MarketScan Commercial Claims and Encounters Database.

Notes: Standard errors in parentheses. Baseline predicted mean was calculated as the average of predicted values when setting mml_i,t and rml_i,t to 0, and leaving the other covariates as the observed values.

p < 0.05;

^**

p < 0.01;

^***

p < 0.001.