Table 5. Correlation between medical illness burden, demographic variables, and alcohol and substance use (N=80).

Medical illness burden at baseline
Variables	CIRS-SA			Charlson comorbidity index
	R2=0.408		p=0.042	R2= 0.380		p=0.000
	β	p	sr2	β	p	sr2
Demographics
Age (years)	0.254	0.218	0.020	0.485	0.000	0.198
Sex (male/female)	-0.102	0.439	0.008	-0.098	0.380	0.009
Race (white/other)	0.044	0.751	0.001	-0.125	0.270	0.014
Monthly income	-0.093	0.539	0.005	-0.152	0.220	0.017
Education (years)	-0.137	0.299	0.014	-0.044	0.708	0.002
Employment (yes/no)	-1.128	0.383	0.010	-0.024	0.841	0.000
PCP (yes/no)	0.240	0.059	0.047	0.232	0.041	0.049
Number of children	0.002	0.988	0.000	-0.029	0.799	0.001
Addiction severity
Cocaine use (days/month)	0.235	0.068	0.044	-0.025	0.824	-
Cannabis use (days/month)	0.040	0.753	0.001	-0.097	0.392	-
Smoking (# of cigarettes/week)	0.033	0.793	0.001	-0.033	0.773	-
Alcohol severity
AST baseline	0.079	0.686	0.002	0.295	0.010	-
GGT baseline	0.316	0.100	0.035	0.331	0.003	-
Number of drinking days/week	0.075	0.684	0.002	0.073	0.537	-
Number of drinks/week	0.063	0.730	0.002	0.060	0.593	-
ASI alcohol composite score	-0.062	0.688	0.002	0.114	0.318	-
Duration of alcohol problems	-0.028	0.882	0.000	-0.025	0.881	-
Psychosis severity
PANSS positive	0.139	0.301	-	-0.054	0.632	-
PANSS negative	-0.243	0.089	-	-0.040	0.744	-
PANSS general	0.047	0.725	-	-0.035	0.760	-
No. of psychiatric meds	-0.012	0.920	-	-0.123	0.262	-
No. of psych. hosp.	0.144	0.260	-	0.046	0.677	-
No. of psych. ER visits	0.005	0.974	-	-0.060	0.589	-
GAF score	0.128	0.358	-	0.120	0.327	-
Psychiatric diagnosis*	0.223	0.084	-	0.150	0.182	-
Calgary score	-0.063	0.627	-	0.002	0.986	-
Duration of psych. illness	0.230	0.151	-	0.029	0.827	-
Psych. illness first	0.092	0.498	-	-0.093	0.399	-

^*schizophrenia (0) vs. schizoaffective disorder (1)