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Long-term Effects of Disasters on Health Care Utilization: Hurricane Katrina and Older Individuals with Diabetes

Published online by Cambridge University Press:  09 January 2019

Troy Quast  and
Lijuan Feng
Troy Quast*
Affiliation:
College of Public Health, University of South Florida, Tampa, Florida
Lijuan Feng
Affiliation:
Department of Economics, University of South Florida, Tampa, Florida
*
Correspondence and reprint requests to Troy Quast, University of South Florida, College of Public Health, 13201 Bruce B Downs Blvd, MDC 56, Tampa, FL 33612 (e-mail: [email protected]).
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Abstract

Objective

While the short-term effects of disasters on health care utilization are well documented, less is known regarding potential longer-term effects. This study investigates the effects of Hurricane Katrina on the health care utilization of older individuals with diabetes.

Methods

We examined Medicare claims and enrollment data for the 2002-2004 and 2006-2008 time periods for older individuals with diabetes. Our quasi-experimental design analyzed utilization across 2 treated and 3 control groups. We compared the proportion of individuals who received a screen related to diabetes before and after Katrina in the treated groups to the proportions in the control groups. Our regression analysis employs individual and year fixed effects to control for factors specific to a given individual or to a given year.

Results

We found that utilization rates in the 2002-2004 period exhibited roughly parallel trends for the treated and control groups, which provides support for our research design. The 2006-2008 utilization rates were generally lower for the treated groups than they were for the control groups. The differences were especially pronounced for older age cohorts.

Conclusions

Our study suggests that the effects of disasters on health care utilization may persist for years after the event. Recovery efforts may be improved by addressing both short-term and long-term health care interruptions. (Disaster Med Public Health Preparedness. 2019;13:724–731)

Keywords

hurricaneMedicarediabetesadministrative datahealth care utilization
Type
Original Research
Information
Disaster Medicine and Public Health Preparedness , Volume 13 , Issue 4 , August 2019 , pp. 724 - 731
Copyright
Copyright © 2019 Society for Disaster Medicine and Public Health, Inc. 

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