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Practical research on GBZ 49-2014 Diagnostic of Occupational Noise Induced-Deafness in occupational health examination / 中国职业医学
China Occupational Medicine ; (6): 345-348, 2019.
Article in Chinese | WPRIM | ID: wpr-881803
Responsible library: WPRO
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.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Occupational Medicine Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Occupational Medicine Year: 2019 Type: Article