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Use of the SINBAD Classification System and Score in Comparing Outcome of Foot Ulcer Management on Three Continents

¹ Foot Ulcer Trials Unit, Diabetes and Endocrinology, City Hospital, Nottingham, U.K.
² Muhimbili University College of Health Sciences, Dar es Salaam, Tanzania
³ Abbas Medical Centre, Dar es Salaam, Tanzania
⁴ Baqai Institute of Diabetology and Endocrinology, Baqai Medical University, Karachi, Pakistan
⁵ Department of Internal Medicine, Marianenkrankenhaus GmBH, Soest, Germany

Corresponding author: Prof. William Jeffcoate, Foot Ulcer Trials Unit, Diabetes and Endocrinology, Nottingham University Hospitals Trust, City Hospital Campus, Nottingham NG5 1PB, U.K. E-mail: wjeffcoate{at}futu.co.uk

OBJECTIVE—To compare populations with and outcomes of diabetic foot ulcers managed in the U.K., Germany, Tanzania, and Pakistan and to explore the use of a new score of ulcer type in comparing outcomes among different countries.

RESEARCH DESIGN AND METHODS—Data from a series of 449 patients with diabetic foot ulcers managed in the U.K. were used to evaluate the new simplified system of classification and to derive an aggregate score. The use of the score was then explored using data from series managed in Germany (n = 239), Tanzania (n = 479), and Pakistan (n = 173).

RESULTS—A highly significant difference was found in time to healing between ulcers of increasing score in the U.K. series (Kruskal-Wallis test; P = 0). When data from all centers were examined, a step-up in days to healing was noted for those with scores of 3 (out of 6). Examination of baseline variables contributing to outcome revealed the following differences among centers: ischemia, ulcer area, and depth contributing to outcome in the U.K.; ischemia, area, depth, and infection in Germany; depth, infection, and neuropathy in Tanzania; and depth alone in Pakistan.

CONCLUSIONS—Any system of classification designed for general implementation must encompass all the variables that contribute to outcome in different communities. Adoption of a simple score based on these variables, the Site, Ischemia, Neuropathy, Bacterial Infection, and Depth (SINBAD) score, may prove useful in predicting ulcer outcome and enabling comparison among different centers.

Abbreviations: S(AD)SAD, Size (Area, Depth), Sepsis, Arteriopathy, and Denervation • SINBAD, Site, Ischemia, Neuropathy, Bacterial Infection, Area, and Depth

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