Abstract
We have advocated the new software (MT86PS) for personal computer analysis of sudden deafness, thereby analysing 300 cases of sudden deafness. MT86PS, recorded in a 8 inches floppy disc, can store the data from 5, 000 cases and was found satisfactory enough as regards the capability of data analysis as well as the capacity and time required for input and output of the data.
We also performed multivariate analysis of sudden deafness cases by the aid of Hokkaido University Computing Center. By the multidimensional quantification I and II, it was found that several factors were important with respect to fixed hearing level: i.e. type of audiogram and hearing level at the initial visit, presence of vestibular symptomes and the age of patients. It was also found that the criteria of cure currently used in Japan is unreasonable in that the fixed hearing level is not taken into consideration. Therefore, revision of the criteria was deemed necessary.
