@article{oai:tsukuba.repo.nii.ac.jp:00041784, author = {Sato, Hiroaki and Kuwashima, Shigeru and Nishio, Shin-ya and Kitoh, Ryosuke and Fukuda, Satoshi and 原, 晃 and HARA, Akira and Hato, Naohito and Ikezono, Tetsuo and Ishikawa, Kotaro and Iwasaki, Satoshi and Kaga, Kimitaka and Matsubara, Atsushi and Matsunaga, Tatsuo and Murata, Takaaki and Naito, Yasushi and Nakagawa, Takashi and Nishizaki, Kazunori and Noguchi, Yoshihiro and Ogawa, Kaoru and Sano, Hajime and Sone, Michihiko and Shojaku, Hideo and Takahashi, Haruo and Tono, Testuya and Yamashita, Hiroshi and Yamasoba, Tatsuya and Usami, Shin-ichi}, issue = {sup565}, journal = {Acta oto-laryngologica}, month = {}, note = {Objectives: A nationwide epidemiological survey involving 23 hospitals in Japan was conducted and the predictive values of demographic data were examined statistically. Methods: A total of 642 patients from 23 hospitals, including 20 university hospitals, in Japan were enrolled in the study. Age ranged from 8 to 87 years, and all were diagnosed with acute low-tone sensorineural hearing loss (ALHL) between 1994 and 2016. Demographic data for the patients, such as symptoms, gender, mean age, and distribution of ALHL grading, were collected and analyzed in relation to prognosis using Student’s t-test, χ2 test and logistic regression. Results: Female gender (p?