Association of Pure Tone Audiometry with DPOAE in Students after Shooting Practice at East Java State Police Academy, Mojokerto, Indonesia
Keywords:acoustic trauma, pure tone audiometry, DPOAE, police
Objective: Analyzing the association between pure tone audiometry and distortion of otoacoustic emission
(DPOAE) in students after shooting practice.
Methods: This study was conducted at the East Java State Police Academy, Mojokerto, Indonesia, from
August 2018 to January 2019. Participants were examined for pure tone audiometry and DPOAE two weeks
after shooting training. Participants previously had undergone shooting training for 5 months, with schedule
of 4 times per week. The statistical test used an independent t test or Mann Whitney test with p < 0.05.
Results: All participants were men, with an average pure tone audiometry value of 27.50 ± 10.43 dB. The
results of pure tone audiometry examination found that most participants had normal hearing (58.00%). This
finding was inversely proportional to the results of DPOAE examination, in which most participants had
“Refer” (78.00%). The mean pure tone audiometry value on participants with DPOAE “Refer” was 20.36 ±
3.47 dB and DPOAE “Pass” was 29.51 ± 10.87 dB (p = 0.008). Most participants had “Refer” DPOAE with
normal pure tone audiometry as much as 36.00%, followed by participants with “Refer” DPOAE but mild
hearing loss of pure tone audiometry as much as 24.00% (p = 0.002).
Conclusion: There is a significant association between pure tone audiometry with DPOAE. Many participants
have normal audiometry but “Refer” DPOAE, and followed by participants experiencing mild hearing loss
with “Refer” DPOAE.
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