Correlation between the hearing loss classifications and speech recognition

Purpose to check the correlation between Speech Reception Threshold and Index of Speech Recognition with mean audiometric results. Methods we selected 241elderly patients who underwent examinations of the pure tone audiometry and speech audiometry. As inclusion, audiometry should have a sensorineural hearing loss. The tone thresholds for air obtained were classified according with the following averages: Average 1 – Average of frequencies of 500, 1000 and 2000 Hz; Average 2 – Average of frequencies of 500, 1000, 2000 and 4000 Hz; Average 3 – average of frequencies of 500, 1000, 2000 and 3000 Hz; and 4 average – average of frequencies of 500, 1000, 2000, 3000 and 4000 Hz. The data were compared with Speech Reception Threshold and Index of Speech Recognition, and treated statistically. Results Average 1 showed higher correlation with the Speech Reception Threshold (rho = 0.934, CI = 0.901 to 0.958; eqm = 52.2). In relation to the Index of Speech Recognition, it was observed that the average 3 showed the highest degree of correlation with the test (rho = – 0.768, CI = –0.807 to –0.721; eqm = 245) followed averages 2 and 4. Conclusion for elderly people with ski slop sensorineural hearing loss, the Speech Reception Threshold has the strongest correlation with the average frequencies 500 Hz, 1000 Hz and 2000 Hz, while the Index of Speech Recognition has the highest correlation with the average which include the frequencies 3000 Hz and 4000 Hz.