Table 3.

Prevalence of Health Care Utilization by Demographic Category

	PCP Visit	ED Visit	Nonpsychiatric Hospitalization	MHC Visit
Sex
P^†	.88	.77	.22	.26
Female	65.7	43.1	21.3	16.7
Male	65.0	44.8	15.6	12.0
Age
P^*	.22	.78	.09	.63
18–30	61.0	43.6	14.7	13.9
31–44	67	43.1	16.7	14.6
45–64	66	49.4	27.0	17.6
65+	75	23.5	18.8	5.6
Race
P^†	.002	.02	.46	.26
White	70.6	36.6	21.9	18.6
Black	66.5	52.8	15.9	11.8
Other	42.6	40.5	17.1	11.8
Education
P^*	.13	<.001	<.001	.003
<High school graduate	75.0	56.0	29.8	33.3
High school graduate or equivalent	62.9	48.4	21.1	10.4
Some college	61.8	25.9	7.5	11.8
Annual Income
P^*	.46	.02	.43	.57
<$15,000	63.6	46.4	17.8	16.4
$15,000-$30,000	64.6	45.1	27.7	10.6
>$30,000	68.4	30.4	12.8	13.8
Insurance
P^†	.69	.02	.38	.71
State/free care	61.1	54.7	23.3	13.6
Medicaid	65.2	47.8	19.7	16.7
Medicare/other	67.2	34.2	15.0	13.2

P values are indicated across the rows of each demographic category; significant P values are indicated in bold.
* P values from the Maentel-Haenszel test of trend for ordinal variables (education, income, age).
† P values from the χ² test for categorical values.
PCP, primary care provider; ED, emergency department; MHC, mental health center.