The Ipswich Touch Test: A simple and novel method to identify inpatients with diabetes at risk of foot ulceration
2011
Rayman, Gerry | Vas, Prashanth R. | Baker, Neil | Taylor, ,Charles G. Jr | Gooday, Catherine | Alder, Amanda I. | Donohoe, Mollie
OBJECTIVE: To promote foot screening of inpatients with diabetes, we simplified sensory testing to lightly touching the tips of the first, third, and fifth toes (the Ipswich Touch Test [IpTT]). RESEARCH DESIGN AND METHODS: Respective performances of the IpTT and 10-g monofilament (MF) were compared with a vibration perception threshold of ≥25 V indicating at-risk feet in 265 individuals. The IpTT and MF were also directly compared. RESULTS: With ≥2 of 6 insensate areas signifying at-risk feet, sensitivities and specificities, respectively, were IpTT (77 and 90%), MF (81 and 91%); positive predictive values were IpTT (89%), MF (91%); and negative predictive values were IpTT (77%), MF (81%). Directly compared, agreement between the IpTT and MF was almost perfect (κ = 0.88, P < 0.0001). Interrater agreement for the IpTT was substantial (κ = 0.68). CONCLUSIONS: The IpTT performs well against a recognized standard for ulcer prediction. Simple to teach, reliable, without expense, and always at hand, it should encourage uptake of screening and detection of high-risk inpatients requiring foot protection.
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