age and gender effects on auditory brain stem response (abr)
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abstract
objectives: auditory brain stem response (abr) is a result of eight nerve and brain stem nuclei stimulation. several factors may affect the latencies, interpeak latencies and amplitudes in abr especially sex and age. in this study, age and sex influence on abr were studied. methods: this study was performed on 120 cases (60 males and 60 females) at akhavan rehabilitation center of university of welfare and rehabilitation sciences, tehran, iran. cases were divided in three age groups: 18-30, 31-50 and 51-70 years old. each age group consists of 20 males and 20 females. age and sex influences on absolute latency of wave i and v, and ipl of i-v were examined. results: independent t test showed that females have significantly shorter latency of wave i, v, and ipl i-v latency (p<0.001) than males. two way anova showed that latency of wave i, v and ipl i-v in 51-70 years old group was significantly higher than 18-30 and 31-50 years old groups (p<0.001) discussion: according to the results of present study and similar studies, in clinical practice, different norms for older adults and both genders should be established.
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Journal title:
iranian rehabilitation journalجلد ۱۰، شماره ۲، صفحات ۳۰-۳۶
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