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(Rec. 29 February 2004) Abstract: A tentative cardiological database was established using virtual instrumentation described in the first part of presented paper. Some additional not heart rate variability parameters were added. Three selected univariate statistical techniques were used for illustration diagnosis support techniques in discrimination between healthy and coronary heart disease people. Comparison of nonparametric MannWhitney test, receiver operating characteristic ROC analysis and univariate logistic regression results was performed. In all used methods long term heart rate variability indices were most useful in prediction of patient's status. The correctness of classification was between 55 to 79 percent with ROC technique and 68 to 78 percent with logistic regression. However high number of false negative FN cases excludes univariate techniques as reliable screening test.

ADVANCED METHODS OF HEART RATE SIGNALS PROCESSING AND THEIR USEFULNESS IN DIAGNOSIS SUPPORT II. UNIVARIATE STATISTICAL TECHNIQUES