Assessing Geographical Clustering of Outpatient Psychiatric: Service Utilization in Philadelphia

13 Pages Posted: 27 Oct 2010 Last revised: 11 Nov 2010

See all articles by Naoru Koizumi

Naoru Koizumi

George Mason University - School of Policy, Government, and International Affairs

Aileen Rothbard

University of Pennsylvania - Perelman School of Medicine

Amit Patel

George Mason University - School of Policy, Government, and International Affairs

Liz Noll

University of Pennsylvania

Tony E. Smith

University of Pennsylvania - Department of Systems Engineering

Date Written: October 14, 2010

Abstract

This study explores a local K-function estimation as a method to identify the spatial clusters of service users of outpatient psychiatric programs in Philadelphia. GIS maps were created to visualize and evaluate the results of K-function analysis. The Medicaid eligible population was used as the control group. The study validated factual information provided in a recent policy brief that reports lower service utilization among African Americans. The subsequent map analysis also indicated that the proximity to service providers and racial composition of the census tract that an eligible individual lives could also affect the decision to be a service user. Specifically, the study found that African Americans living in Caucasian neighborhoods were more likely to be service users while African Americans living in African American neighborhoods were less likely to use services.

Keywords: K-function, Hot-spot, Outpatient psychiatric service utilization, GIS, Racial disparity

Suggested Citation

Koizumi, Naoru and Rothbard, Aileen and Patel, Amit and Noll, Liz and Smith, Tony E., Assessing Geographical Clustering of Outpatient Psychiatric: Service Utilization in Philadelphia (October 14, 2010). GMU School of Public Policy Research Paper No. 2010-27, Available at SSRN: https://ssrn.com/abstract=1692968

Naoru Koizumi (Contact Author)

George Mason University - School of Policy, Government, and International Affairs ( email )

Founders Hall
3351 Fairfax Dr.
Arlington, VA 22201
United States

Aileen Rothbard

University of Pennsylvania - Perelman School of Medicine ( email )

423 Guardian Drive
Philadelphia, PA 19104
United States

Amit Patel

George Mason University - School of Policy, Government, and International Affairs ( email )

Founders Hall
3351 Fairfax Dr.
Arlington, VA 22201
United States

Liz Noll

University of Pennsylvania ( email )

Philadelphia, PA 19104
United States

Tony E. Smith

University of Pennsylvania - Department of Systems Engineering ( email )

School of Engineering & Applied Science
3718 Locust Walk
Philadelphia, PA 19104
United States
215-898-9647 (Phone)
215-898-5020 (Fax)

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