ID Number		2270
Study Type		Human / Provocation
Model		Prospective single-blind study of hearing loss in mobile phone users.
Details		AUTHORS' ABSTRACT: Velayutham et al. (IEEE #5161): The objective of this study is to assess high frequency hearing (above 8 kHz) loss among prolonged mobile phone users is a tertiary Referral Center. Prospective single blinded study. This is the first study that used high-frequency audiometry. The wide usage of mobile phone is so profound that we were unable to find enough non-users as a control group. Therefore we compared the non-dominant ear to the dominant ear using audiometric measurements. The study was a blinded study wherein the audiologist did not know which was the dominant ear. A total of 100 subjects were studied. Of the subjects studied 53% were males and 47% females. Mean age was 27. The left ear was dominant in 63%, 22% were dominant in the right ear and 15% did not have a preference. This study showed that there is significant loss in the dominant ear compared to the non-dominant ear (P < 0.05). Chronic usage mobile phone revealed high frequency hearing loss in the dominant ear (mobile phone used) compared to the non dominant ear.
Findings		Effects
Status		Completed With Publication
Principal Investigator		University of Malaya
Funding Agency		(vacant)
Country		MALASIA
References		Velayutham , P et al. Indian Journal of Otolaryngology and Head & Neck Surgery., (2012) Published online Dec 14, 2011o:-(4 pages)
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