Practical research on GBZ 49-2014 Diagnostic of Occupational Noise Induced-Deafness in occupational health examination
10.11763/j.issn.2095-2619.2019.03.017
- Author:
Congxi QIU
1
;
Qiuyue LIN
1
;
Yanru LI
1
;
Lüwu XIAO
1
;
Hao ZHOU
1
;
Yimin LIU
1
Author Information
1. Guangzhou Occupational Disease Prevention and Treatment Center Guangzhou,Guangdong 510620,China
- Publication Type:Journal Article
- Keywords:
Occupational noise-induced deafness;
Occupational health examination;
Noise;
Diagnostic criteria
- From:
China Occupational Medicine
2019;46(03):345-348
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To explore the 2014 edition of the diagnostic criteria of occupational noise-induced deafness on the assessment of hearing loss in occupational health examination. METHODS: A total of 835 noise-exposed workers were selected as study subjects by cluster sampling method. The hearing threshold results were compared through two different editions of criteria: GBZ 49-2007 Diagnostic Criteria of Occupational Noise-induced Deafness( GBZ 49-2007) and GBZ 49-2014 Diagnosis of Occupational Boise-induced Deafness( GBZ 49-2014). RESULTS: The binaural high frequency threshold average calculated by GBZ 49-2007 was lower than that of GBZ 49-2014 [( 46. 8 ± 8. 1) vs( 49. 2 ± 8. 0) d B,P < 0. 01].The speech frequency threshold average of the good ear calculated by GBZ 49-2007 was lower than the monaural threshold of weighted value of the good ear of GBZ 49-2014 [( 18. 8 ± 3. 6) vs( 22. 0 ± 3. 3),P < 0. 01]. The speech frequency threshold average of the good ear and the monaural threshold of weighted value of the good ear calculated after age and sex correction using GBZ 49-2007 were lower than that calculated by using GBZ 49-2014 [( 18. 8 ± 3. 6) vs( 19. 4 ± 3. 6),( 21. 5 ±3. 4) vs( 22.0 ±3.3),P <0.05]. The detection rate of suspected occupational noise-induced deafness GBZ 49-2014 was higher than that of GBZ 49-2007( 6. 35% vs 2. 87%,P < 0. 01). CONCLUSION: In occupational health examination,the diagnostic criteria of GBZ 49-2014 can diagnose patients as suspected occupational noise-induced deafness easier than that of GBZ 49-2007.
