THE CORRELATION BETWEEN TNF- ALPHA VALUE WITH HEARING THRESHOLD AT 4000 HERTZ AFTER EXPOSURE TO GUNFIRE OF NATIONAL POLICE ACADEMY IN EAST JAVA, INDONESIAISMELIA FADLAN, NYILO PURNAMI AND JENNY ENDANG BASHIRUDDIN
The incidence of acoustic trauma after gunshot exposure in students of the Sekolah Polisi Negara (SPN) is quite high. Prevention has been done by using the earplugs, but it was not effective so that other methods are needed to prevent the occurrence of acoustic trauma. Tumor Necrotic Factor alpha(TNF alpha) is chemotax is factor with function to pull monosit move to inflammation area and make inflammation cell accumulation, the relationship between the levels of TNF alpha and the hearing threshold frequency hearing threshold post gunshot exposure in SPN East Java students. This study is observational analytic with a retrospective cross sectional approach using secondary data of medical records of students of the SPN East Java batch 2017/2018. The samples were selected by simple random sampling. Out of the 50 students, the youngest was 18 years old and the oldest was 21 years with an average of 19.62 years. All research samples were male. Decreasing the hearing threshold frequency at 4000 Hz indicated as acoustic trauma was found in 28 students (56%), the minimum hearing threshold frequency at 4000 Hz 5 dB and maximum of 65 dB with an average of 31.52 dB. The minimum value of TNFalpha was 11,91ng/mL and maximum was 407,87 ng/mL with an average of 164,74 ng/mL. Hearing loss complaints were found in student (2%). Complaints of tinnitus and vertigo were not found. Statistical tests with Pearson correlation between TNF alpha levels in serum with a hearing threshold value at 4000 Hz frequency showed that the SD 116,60 and p=0.17(p>0.05). There is not a strong relationship between TNF alpha levels and the hearing threshold at 4000 Hz frequency after gunshot exposure in SPN East Java students.
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