{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T04:53:09Z","timestamp":1789102389908,"version":"build-2803163510"},"reference-count":41,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,2,3]],"date-time":"2020-02-03T00:00:00Z","timestamp":1580688000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Diabetes Metabolism Res"],"published-print":{"date-parts":[[2020,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aims<\/jats:title><jats:p>Pedal sensory loss due to diabetes\u2010related neuropathy can be graded by testing static two\u2010point discrimination (S2PD), moving two\u2010point discrimination (M2PD), static one\u2010point discrimination (S1PD; eg, 10\u2010g monofilament), and vibration sense and is included in the Rotterdam Diabetic Foot (RDF) Study Test Battery. The aim of this study is to investigate if decision tree modelling is able to reduce the number of tests needed in estimating pedal sensation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The 39\u2010item RDF Study Test Battery (RDF\u201039) scores were collected from the prospective RDF study and included baseline (n = 416), first follow\u2010up (n = 364), and second follow\u2010up (n = 135) measurements, supplemented with cross\u2010sectional control data from a previous study (n = 196). Decision tree analysis was used to predict total RDF\u201039 scores using individual test item data. The tree was developed using baseline RDF study data and validated in follow\u2010up and control data. Spearman correlation coefficients assessed the reliability between the decision tree and original RDF\u201039.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The tree reduced the number of items from 39 to 3 in estimating the RDF\u201039 sum score. M2PD (hallux), S2PD (first dorsal web, fifth toe), vibration sense (interphalangeal joint), and S1PD (first dorsal web, fifth toe) measurements proved to be predictive. The correlation coefficients to original scores were high (0.76 to 0.91).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The decision tree was successful at reducing the number of RDF Test Battery items to only 3, with high correlation coefficients to the scores of the full test battery. The findings of this study aids medical decision making by time efficiently estimating pedal sensory status with fewer tests needed.<\/jats:p><\/jats:sec>","DOI":"10.1002\/dmrr.3291","type":"journal-article","created":{"date-parts":[[2020,1,19]],"date-time":"2020-01-19T08:19:30Z","timestamp":1579421970000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Item reduction of the 39\u2010item Rotterdam Diabetic Foot Study Test Battery using decision tree modelling"],"prefix":"10.1002","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8137-3076","authenticated-orcid":false,"given":"Willem D.","family":"Rinkel","sequence":"first","affiliation":[{"name":"Department of Plastic, Reconstructive and Hand Surgery Utrecht University Medical Center, Utrecht University  Utrecht The Netherlands"},{"name":"Department of Plastic, Reconstructive and Hand Surgery Franciscus Gasthuis &amp; Vlietland  Rotterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark J. 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