. Author manuscript; available in PMC: 2018 Nov 27.

Published in final edited form as: J Clin Psychiatry. 2015 Sep;76(9):1174–1180. doi: 10.4088/JCP.14m09475

Table 2.

Relationship Between Marijuana Use and Clinical Outcomes at 4 Months Follow Up

Outcome Variable	Never Users (1)	Stoppers (2)	Continuing Users (3)	Starters (4)	F value	P value	Paired comparisons^*
	N=767	N=263	N=268	N=738
	LS Mean^a(SE)
PTSD Symptom severity (MISS)	37.71 (0.228)	36.64 (0.385)	38.92 (0.383)	39.67 (0.226)	21.47	<0.0001	3,4>1,2
Violence	0.87 (0.041)	0.76 (0.068)	0.93 (0.068)	1.25 (0.040)	21.28	<0.0001	4>1,2,3
Alcohol Abuse (ASI)	0.096 (0.007)	0.079 (0.011)	0.129 (0.011)	0.229 (0.006)	88.51	<0.0001	4>1,2,3; 3>2
Drug Abuse (ASI)	0.037 (0.0033)	0.034 (0.0056)	0.128 (0.0056)	0.13 (0.0033)	176.26	<0.0001	3,4>1,2
Employment Status (ASI)	0.578 (0.007)	0.575 (0.011)	0.594 (0.011)	0.577 (0.007)	0.66	0.5752

Covarying for marital status; age; race; history of incarceration; waiting list status; psychosis; chronic medical problems; war zone service; length of stay; expulsion from treatment; and baseline measures of violence, PTSD, drug and alcohol abuse, and employment

P < 0.01

Abbreviations: LS - Least Squares; SE - Standard error; MISS - Short Form of the Mississippi; ASI - Addiction Severity Index