Negative urgency partially accounts for the relationship between major depressive disorder and marijuana problems

Table 3 Results of Path models: Indirect and Direct effects of MDD on Marijuana Use and Problems, via Impulsive Personality Traits

	Direct path to mediator (a path)	Marijuana Use (b path)	Marijuana Problems (b path)
Mediator	B (SE)	B (SE)	B (SE)
Single Mediator Models
Direct Effect
NU	.29 (05)***	.09 (.05)	.15 (.06)*
PU	.21 (.06)***	.06 (.05)	.08 (.08)
PS	.15 (.06)**	.08 (.06)	.09 (.05)
Indirect Effect
NU		.03 (.02)	.05 (.02)*
PU		.01 (.01)	.02 (.02)
PS		.01 (.01)	.01 (.01)
Multiple Mediator Model
Direct Effect
NU	.29 (.05)***	.07 (.06)	.15 (.07)*
PU	.19 (.06)***	.01 (.06)	−.01 (.07)
PS	.16 (.06)**	.06 (.06)	.07 (.06)
Indirect Effect (a x b)
		.03 (.02)*	.05 (.02)*
Total Effect
		.25 (.07)***	.22 (.07)***

NU negative urgency, PU positive urgency, PS lack of perseverance, MDD Major Depressive Disorder. Parameters are standardized. All models control for age, sex, and race. ***p < .001, **p < .01, *p < .05

ISSN: 2051-6673