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Mental Health and High-Cost Health Care Utilization: New Evidence from Axis II Disorders

Authors

  • Johanna Catherine Maclean,

    Corresponding author
    1. Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
    • Address correspondence to Johanna Catherine Maclean, Ph.D., Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, 1316 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104; e-mail: macleanc@upenn.edu.

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  • Haiyong Xu,

    1. Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine and Department of Health Policy and Management, Jonathan and Karin Fielding School of Public Health at the University of California Los Angeles, Los Angeles, CA
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  • Michael T. French,

    1. Health Economics Research Group, Department of Sociology, Department of Public Health Sciences, University of Miami, Coral Gables, FL
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  • Susan L. Ettner

    1. Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine and Department of Health Policy and Management, Jonathan and Karin Fielding School of Public Health at the University of California Los Angeles, Los Angeles, CA
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Abstract

Objective

To analyze the associations between Axis II (A2) disorders and two measures of health care utilization with relatively high cost: emergency department (ED) episodes and hospital admissions.

Data Source/Study Setting

Wave I (2001/2002) and Wave II (2004/2005) of the National Longitudinal Survey on Alcohol and Related Conditions (NESARC).

Study Design

A national probability sample of adults. Gender-stratified regression analysis adjusted for a range of covariates associated with health care utilization.

Data Collection

The target population of the NESARC is the civilian noninstitutionalized population aged 18 years and older residing in the United States. The cumulative survey response rate is 70.2 percent with a response rate of 81 percent (N = 43,093) in Wave I and 86.7 percent (N = 34,653) in Wave II.

Principal Findings

Both men and women with A2 disorders are at elevated risk for ED episodes and hospital admissions. Associations are robust after adjusting for a rich set of confounding factors, including Axis I (clinical) psychiatric disorders. We find evidence of a dose–response relationship, while antisocial and borderline disorders exhibit the strongest associations with both measures of health care utilization.

Conclusions

This study provides the first published estimates of the associations between A2 disorders and high-cost health care utilization in a large, nationally representative survey. The findings underscore the potential implications of these disorders on health care expenditures.

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