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PharmacoEconomics

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01.12.2003 | Original Research Article

Development and validation of the Diabetic Foot Ulcer Scale-Short Form (DFS-SF)

verfasst von: Carla M. Bann, Sheri E. Fehnel, Dennis D. Gagnon

Erschienen in: PharmacoEconomics | Ausgabe 17/2003

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Abstract

Background: The Diabetic Foot Ulcer Scale (DFS) provides comprehensive measurement of the impact of diabetic foot ulcers on patients’ QOL through self-administration of 64 items comprising 15 subscales.

Objective: To develop and evaluate a short form of the DFS (DFS-SF) to reduce patient burden and the number of outcome measures, and to improve sensitivity to change in clinical condition.

Methods: The DFS-SF was created through the analysis of data from a doubleblind, placebo-controlled, randomised trial of the efficacy and safety of becaplermin (recombinant human platelet-derived growth factor BB) in the treatment of chronic, full-thickness, neuropathic, diabetic foot ulcers. Using these data, items demonstrating poor psychometric properties were eliminated. Exploratory factor analyses were then conducted to develop a new, more parsimonious scaling algorithm that optimised the internal consistency of the new subscales. Finally, data from two additional clinical trials were used to assess replicability of the DFS-SF subscale structure.

Results: The DFS-SF contains a total of 29 items comprising six subscales. The results of both confirmatory and exploratory factor analyses provided support for the scaling algorithm. The DFS-SF subscales showed good internal consistency, reliability and construct validity, and demonstrated sensitivity to ulcer healing.

Conclusions: The results of this investigation indicate that the DFS-SF has good psychometric properties and replicability.

Moss SE, Klein R, Klein B. The prevalence and incidence of lower extremity amputation in a diabetic population. Arch Intern Med 1992; 152: 610–6PubMedCrossRef

Kumar S, Ashe HA, Parnell LN, et al. The prevalence of foot ulceration and its correlates in type 2 diabetic patients: a population-based study. Diabet Med 1994; 11: 480–4PubMedCrossRef

Palumbo PJ, Melton LJ. Peripheral vascular disease and diabetes. In: Hams MI, Hammon RE editors. Diabetes in America. NIH Publication No.: 85-1468. Washington, DC: US Government Printing Office, 1985: 1–21

Pecoraro RE, Reiber GE, Burgess EM. Pathways to diabetic limb amputation: basis for prevention. Diabetes Care 1990; 13: 513–21PubMedCrossRef

Reiber GE, Pecoraro RE, Koepsell TD. Risk factors for amputation in patients with diabetes mellitus: a case control study. Ann Intern Med 1992; 117: 97–105PubMed

Brod M. Quality of life issues in patients with diabetes and lower extremity ulcers: patients and care givers. Qual Life Res 1998; 7: 365–72PubMedCrossRef

Carrington AL, Mawdsley SK, Morley M, et al. Psychological status of diabetic people with or without lower limb disability. Diabetes Res Clin Pract 1996; 32: 19–25PubMedCrossRef

Meijer JWG, Trip J, Jaegers SMHJ, et al. Quality of life in patients with diabetic foot ulcers. Disabil Rehabil 2001; 23: 336–40PubMedCrossRef

Ware JE, Snow KK, Kosinski M, Gandek B. SF-36 Health Survey manual and interpretation guide. Boston (MA): The Health Institute, New England Medical Center, 1993

10.

Roorda LD, Roebroeck ME, Lankhorst GJ, et al. Measuring functional limitations in rising and sitting down: development of a questionnaire. Arch Phys Med Rehabil 1996; 77: 663–9PubMedCrossRef

11.

Tennvall GR, Apelqvist J. Health-related quality of life in patients with diabetes mellitus and foot ulcers. J Diabetes Complications 2000; 14: 235–41CrossRef

12.

Abetz L, Sutton M, Brady L, et al. The Diabetic Foot Ulcer Scale (DFS): a quality of life instrument for use in clinical trials. Pract Diab Int 2002; 19: 167–75CrossRef

13.

Conway K, Pouget C, Finn P, et al. The cultural validation of the Diabetic Foot Ulcer Scale: methods and issues [abstract]. Qual Life Res 1998; 7: 581

14.

Sutton M, McGrath C, Brady L, et al. Diabetic foot care: assessing the impact of care on the whole patient. Pract Diab Int 2000; 17: 147–51CrossRef

15.

Dielman TE, Cattell RB, Wagner A. Evidence on the simple structure and factor invariance achieved by five rotational methods on four types of data. Mult Beh Res 1972; 7: 223–42CrossRef

16.

Gorsuch RL. A comparison of Biquartimin, Maxplane, Promax, and Varimax. Educ Psychol Meas 1970; 30: 861–72CrossRef

17.

Cronbach LJ. Coefficient alpha and the internal structure of tests. Psychometrika 1951; 6: 297–334CrossRef

18.

Campbell DT, Fiske DW. Convergent and discriminant validation by the multitrait-multimethod matrix. Psychol Bull 1959; 56: 81–105PubMedCrossRef

19.

Hill-Briggs F, Gary TL, Hill MN, et al. Health-related quality of life in urban African Americans with type 2 diabetes. J Gen Intern Med 2002; 17: 412–9PubMedCrossRef

20.

Lee PP, Whitcup SM, Hays RD, et al. The relationship between visual acuity and functioning and well-being among diabetics. Qual Life Res 1995; 4: 319–23PubMedCrossRef

21.

Weinberger M, Kirkman MS, Samsa GP, et al. The relationship between glycemic control and health-related quality of life in patients with non-insulin-dependent diabetes mellitus. Med Care 1994; 32: 1173–81PubMedCrossRef

22.

Laird NM, Ware JH. Random-effects models for longitudinal data. Biometrics 1982; 38: 963–74PubMedCrossRef

23.

Littell RC, Milliken GA, Stroup WW, Wolfinger RD. SAS® system for mixed models. Cary (NC): SAS Institute Inc., 1996

24.

Forsyth BH, Lessler JT, Hubbard ML. Cognitive evaluation of the questionnaire. In: Turner C, Lessler JT, Gfroerer JC, editors. Survey measurement of drug use. Publication No.: 92-1929 Washington, DC: US Department of Health and Human Services (DHHS), 1992: 13–52

25.

Kaiser HF. The application of electronic computers to factor analysis. Educ Psychol Meas 1960; 20: 141–51CrossRef

26.

Thurstone LL. Multiple factor analysis. Chicago (IL): University of Chicago Press, 1947

27.

Hatcher L. A step-by-step approach to using the SAS® system for factor analysis and structural equation modeling. Cary (NC): SAS Institute Inc., 1994

28.

Lohr KN, Aaronson NK, Alonso J, et al. Evaluating quality-oflife and health status instruments: development of review scientific criteria. Clin Ther 1996; 18: 979–92PubMedCrossRef

29.

Streiner DL, Norman GR. Health measurement scales: a practical guide to their development and use. 2nd ed. New York: Oxford University Press, 1995

30.

Jöreskog K, Sörbom D. LISREL® 8: user’s reference guide. Chicago (IL): Scientific Software International, Inc., 1996

31.

Hoyle RH, Panter AT. Writing about structural equation models. In: Hoyle RH, editor. Structural equation modeling: concepts, issues, and applications. Thousand Oaks (CA): Sage, 1995:158–76

32.

Schumacker RE, Lomax RG. A beginner’s guide to structural equation modeling. Mahwah (NJ): Erlbaum, 1996

33.

Gorsuch RL. Factor analysis. 2nd ed. Hillsdale (NJ): Erlbaum, 1983

34.

Wrigley CS, Neuhaus JO. The matching of two sets of factors. Am Psychol 1955; 10: 418–9

Titel: Development and validation of the Diabetic Foot Ulcer Scale-Short Form (DFS-SF)
verfasst von: Carla M. Bann
Sheri E. Fehnel
Dennis D. Gagnon
Publikationsdatum: 01.12.2003
Verlag: Springer International Publishing
Erschienen in: PharmacoEconomics / Ausgabe 17/2003
Print ISSN: 1170-7690
Elektronische ISSN: 1179-2027
DOI: https://doi.org/10.2165/00019053-200321170-00004

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Development and validation of the Diabetic Foot Ulcer Scale-Short Form (DFS-SF)

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Live-Webinar "Urologie und Sexualmedizin in der Praxis"

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