A decision tree for early differentiation between obstructive and non-obstructive jaundice

A. Malchow-Møller, C. Thomsen, J. Hilden, P. Matzen, L. Mindeholm, E. Juhl

    Publikation: Bidrag til tidsskriftArtikelForskningpeer review

    Abstrakt

    We present a method for early differentiation between obstructive and non-obstructive jaundice. On the basis of 14 variables (clinical data and clinical chemical tests, all available within 48 h) a simple decision tree or flow chart has been constructed. The diagnostic yield was as follows: 857 of 982 consecutive jaundiced patients (87% in a data base and 98 of 108 patients in an independent test sample (91% were correctly classified. Decision trees for the differentiation between benign or malignant causes within the obstructive group and between acute or chronic causes within the non-obstructive group are also presented. The resulting four-way classification was correct for 77% of the patients in the data base and for 72% of the patients in the test sample. The decision trees are compared with previous methods founded on Bayes' rule and logistic discrimination. The decision trees enable a quick and reliable classification of jaundiced patients, thus providing a valid basis for rational planning of the further diagnostic study.

    OriginalsprogEngelsk
    Sider (fra-til)391-401
    Antal sider11
    TidsskriftScandinavian journal of gastroenterology
    Vol/bind23
    Udgave nummer4
    DOI
    StatusUdgivet - 1 jan. 1988

    Fingeraftryk Udforsk hvilke forskningsemner 'A decision tree for early differentiation between obstructive and non-obstructive jaundice' indeholder.

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