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《Beijing Medical Journal》 1984-05
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Six indexes of the EKG computer analysis and its application

Feng Genquan  
The authers analysed the power spectrum, transfer function, coherence impulse and amplitude histogram of the EKC of 94 workers who exposed under occupational noise for more than 10 years, and compared with that of the sequels of myocardial infarction (35 patients) and the controls (37 normals). The incidence of abnormal indexes in the myocardial infarction patients group was 33-90% and that of the control group was 0-11%. The incidence of abnormal indexes in the workers group was 6-43%, it was higher than that of controls and lower than that of the patients, This fact expresses that long term of occupational noise exposure is able to influence the function of the heart, and the indexes we used in this paper could be used clinically.
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