Frequent use of Mobile Phone tied to hearing damage in young adults, Finds study
Researchers from a recent study have found out that although there are no short term effect of mobile phones on the hearing in young adults, however, long term effect on hearing with progressing age cannot be ruled out, according to the study published in the Indian Journal of Otolaryngology and Head & Neck Surgery .
There are concerns regarding the health effects of electromagnetic fields (EMFs) generated by mobile phones. There are apprehensions regarding the effect of these radiations on auditory system.
Hence, Dinesh Sharma and associates from the Department of Otorhinolaryngology, Indira Gandhi Medical College, Shimla, India conducted the present study to find the effect of mobile phone on hearing in young adults.
The authors studied a total of 75 medical students who were mobile phone users for >1 year. Initial hearing status of subjects was assessed by Pure Tone Audiometry (PTA), Otoacoustic emissions (OAE) and Brainstem evoked response audiometry (BERA) at the time of enrollment in the study and repeat audiological assessment was conducted at 6 months and again at one year and comparison was done. The mean age of the population was 20.13 + 1.33 years.
The following results were seen-
a. Right, left and no particular preference for any ear was seen in 74.7%, 16% and 9.3%, respectively.
b. Mean PTA at baseline in right ear at baseline, 6 months and 1 year was 12.71 ± 3.51 dB, 13.73 ± 3.69 dB and 14.07 ± 3.25 dB (p value=0.120), respectively and the same values for left ear were 13.28±3.57, 14.32±3.10 and 14.24±3.20 (p = 0.170) at baseline, 6 months and 1 year.
c. No statistically significant difference in hearing thresholds was seen at baseline and at subsequent follow-ups and between dominant ear and non-dominant ear on BERA and OAE.
Therefore, the authors concluded that "there may not be any short term effect of mobile phones on the hearing in young adults, however, long term effect on hearing with progressing age cannot be ruled out."
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