The HP-5 program for computer analysis of the ECG has been evaluated as far as sensibility and specificity in a multicenter study. A consistent number of tracings (850) were sampled according to a statistical formula and all measurements and statements given by the computer were checked in a standardized manner. The collected data were classified and computerized. The HP-5 program has shown a very high specificity for tracings classified as normal (0.7% of false negatives) and for those classified abnormal (no false positive), while the level of agreement between manual and computer readings of the tracings classified atypical or borderline, was practical of computerized ECG.
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