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Item Auditory and non-auditory effects of consistent-use of mobile- telephone in Ibadan-Oyo State, Nigeria(2020-05) Lawal, A. O.; Osisanya, A.Consistent exposure to sound generated by mobile phone have continued to pose threat on the human hearing functions. Adolescents are more likely than any other group to utilize the device for music playing functions, continued calls and other numerous functions. Thus, this study therefore, investigated the auditory and non- auditory effect of consistent-use of mobile telephone among adolescents in Ibadan Metropolis. The study adopted an ex-post facto research design. The sample of the study comprised 500 participants purposively selected. Data were analyzed using percentage, frequency and chi-square. The findings indicated that 11% of the participants had a notched hearing pattern, while 46.6% had a rising hearing pattern. 14.6%> of the participants claimed having ear pain after the use of mobile phone for calls and other listening purposes, while 12.6 % claimed having headache after prolong use of mobile telephony for music playing functions. The findings indicated that a number of the participants experienced both auditory and non-auditory problems due to consistent exposure to noise emanated from mobile phone. Based on the findings, it was recommended that prolong use of mobile phone especially for listening purpose and music playing functions should be reduced. Also, awareness campaigns on the dangers of consistent-use of mobile telephone should be instituted.Item Incidence and patterns of hearing loss associated with the consistent use of mobile telephone among adolescents in Ibadan, Nigeria(2017) Lawal, A. O.; Osisanya, A.There has been an increased incidence of hearing -related difficulty due to consistent use of mobile phones, particularly those with multiplicity of functions for continued calls and music playing functions. Thus, this study investigated the incidence and patterns of hearing loss associated with the consistent use of mobile telephone among adolescents in Ibadan Metropolis. The study adopted an ex-post facto research design, sampling 500 adolescents through the use of Hearing and Mobile Telephony Questionnaire (HMTQ). Frequency counts and percentage were employed to answer the three (3) research questions raised. The findings revealed that 84.6% were without hearing loss as against 15.4% of the participants who presented with different degrees and patterns of hearing loss. Forty two (54.55%) were males, while 35(45.45%) were the female participants who presented with hearing loss. 423 participants claimed having normal hearing ability even with the consistent use of mobile phone, while 43 of the participants presented with low-frequency hearing loss at left ear, and 46participants were found with high-frequency hearing loss at the right ear. Further, it was established that people should be enlightened on the dangers of consistent use of mobile telephone to hearing. Therefore,, it is recommended that mobile phone should not be used for a long period of time, even when used for calls, and leisure such as music playing functions. The youths should be dissuaded from continued use of ear-piece during leisure. Also, adolescents should go for hearing assessment on a regular basis so as to detect early any changes along their auditory performance