Self-reported alcohol and drug use six months after brief intervention: do changes in reported use vary by mental-health status?

Table 3 Linear regression results comparing those with a mental-health diagnosis to those without

Model/Sample		Coefficient*	95% CI	P-value
Any alcohol days	Statewide (n=468)	−0.01	−2.21, 2.20	.99
Any alcohol days	HMC (n=371)	1.13	−1.46, 3.73	.39
Binge alcohol days	Statewide (n=468)	0.56	−1.44, 2.55	.55
Binge alcohol days	HMC (n=371)	−0.36	−2.74, 2.03	.77
Illegal drug days	Statewide (n=631)	−0.80	−2.70, 1.10	.41
Illegal drug days	HMC (n=406)	0.56	−1.95, 3.07	.66

*The coefficient represents the difference in change from baseline to follow-up for those with a mental health diagnosis compared to those without (a negative coefficient represents a larger relative decrease in use for those with a mental health diagnosis). Each of these models contained all covariables listed in Table 2 (except the HMC sample did not include WASBIRT site variables, since it was comprised of only a single site).

ISSN: 1940-0640