Table 6.

Adjusted Proportion of Primary Care Physicians Reporting Difficulty Obtaining Needed Mental Health Services by Availability of Psychiatrists in County^*

Availability of Psychiatrists (per 100,000 Population)†	Outpatient Mental Health Services(N = 6,319)	Inpatient Mental Health Services (N = 5,933)
0–5*	59% (reference group)	62% (reference group)
5–14	52% (P = .031)	50% (P < .001)
15–29	53% (P = .025)	53% (P < .001)
30+	49% (P = .001)	46% (P < .001)

^*Adjusted proportions are based on logistic regressions using the full sample but holding all other characteristics constant. Characteristics held constant in this model are sex, minority status, primary care specialty, years of practice, extent of charity care provided per month, percent revenue from Medicaid, percent revenue from Medicare, categories for size and type of practice, perceptions of adequacy of time with patient, extent of gatekeeping in practice, hospital beds per 10,000 population and managed care market penetration.

^†Number of psychiatrists per 100,000 population at the county level.