Table 3.

Statistically significant differences in the prevalence rates of health conditions between subgroups of a sample of 147 Medicaid enrollees with severe mental illness^a

		Incidence of co-occurring health conditions
Condition and sample characteristic	Total N	N	%	χ2	p
Pulmonary (medium to high severity)
Major depression or bipolar disorder	69	11	16	6.22	.013
Schizophrenia	78	3	4
Pulmonary (all levels of severity)
Substance use disorderb	40	18	45	5.36	.02
No substance use disorderb	107	27	25
Infectious (all levels of severity)
Substance use disorderb	40	4	10	7.28	.007
No substance use disorderb	107	1	1
Infectious (all levels of severity)
Homelessc	19	3	16	10.19	.001
Not homelessc	128	2	2
Gastrointestinal (all levels of severity)
Low socioeconomic statusd	93	30	32	5.42	.02
High socioeconomic statusd	54	8	15
Gastrointestinal (medium to high severity)
Obesee	15	5	33	5.53	.019
Not obesee	132	15	11
Metabolic (medium to high severity)
Obesee	15	5	33	6.18	.013
Not obesee	132	14	11
Metabolic (medium to high severity)
Female	68	15	22	9.38	.002
Male	79	4	5
Skeletal and connective (low severity)
Female	68	19	28	7.74	.003
Male	79	7	9
Eye (all levels of severity)
Female	68	14	21	6.6	.01
Male	79	5	6
Genital (all levels of severity)
Female	68	16	24	10.6	.001
Male	79	4	5
Cardiovascular (all levels of severity)
Aged 18 to 33 years	47	5	11	14.13	.001
Aged 34 to 44 years	63	11	18
Aged 45 to 75 years	37	16	43

^aChi square analyses compared high and low health condition severity groups on all diagnostic and demographic variables; statistical significance was set at p<.02. Severity levels within health conditions were based on estimated annual costs; extra low, very low, and low cost diagnoses were combined.

^bCoded as “yes” if the participant had any Medicaid claims for substance abuse that lasted more than five days during the four-year study period

^cCoded as “yes” if the participant was homeless at any time between 1996 and 2000

^dCoded as “high” if the participant had a postsecondary education or held a white collar or managerial job for at least five years

^eCoded as “yes” if the participant had at least one Medicaid claim for treatment for obesity during the four-year study period