Costs of Lower-Extremity Ulcers Among Patients With Diabetes

  1. Karen Stockl, PHARMD1,
  2. Ann Vanderplas, MS1,
  3. Eskinder Tafesse, PHD2 and
  4. Eunice Chang, PHD1
  1. 1Prescription Solutions, Costa Mesa, California
  2. 2Bristol-Myers Squibb Pharmaceutical Research Institute, Wallingford, Connecticut
  1. Address correspondence and reprint requests to Karen Stockl, Prescription Solutions, 3515 Harbor Blvd., M/S LC07-264, Costa Mesa, CA 92626. E-mail: information{at}rxsolutions.com

Abstract

OBJECTIVE—The objective of this study was to characterize health care costs associated with diabetic lower-extremity ulcers.

RESEARCH DESIGN AND METHODS—Adult patients with diabetes who had a lower-extremity ulcer episode during 2000 and 2001 were identified using claims data. Ulcer-related direct health care costs were computed for each episode. Episodes were stratified according to severity level based on the Wagner classification.

RESULTS—A total of 2,253 patients were identified. The mean age was 68.9 years, and 59% of the patients were male. The average episode duration was 87.3 ± 82.8 days. Total ulcer-related costs averaged $13,179 per episode and increased with severity level, ranging from $1,892 (level 1) to $27,721 (level 4/5). Inpatient hospital charges accounted for 77% ($10,188) of the overall cost, indicating that hospitalization was a major cost driver. Total ulcer-related costs were significantly higher for patients <65 years of age compared with those of older patients ($16,390 vs. $11,925, P = 0.02) and for patients with inadequate vascular status compared with patients with adequate vascular status ($23,372 vs. $5,218, P < 0.0001). Patients who progressed to a higher severity level also had significantly higher ulcer-related costs compared with patients who did not progress ($20,136 vs. $3,063, P < 0.0001).

CONCLUSIONS—The high costs of treating diabetic lower-extremity ulcers emphasize the value of intensive outpatient interventions designed to prevent ulcer progression.

Footnotes

  • K.S. holds stock in Elan Pharmaceuticals, Merck, Amgen, and PacifiCare. E.T. holds stock in Bristol-Myers Squibb and Pfizer. E.C. holds stock in PacifiCare.

    Additional information for this article can be found in an online appendix at http://care.diabetesjournals.org.

    A table elsewhere in this issue shows conventional and Système International (SI) units and conversion factors for many substances.

    • Accepted June 16, 2004.
    • Received January 16, 2004.
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