ABSTRACT
OBJECTIVE: To analyze the epidemiological characteristics of occupational noise-induced deafness( ONID) in Guangdong Province from 2011 to 2015. METHODS: The data of ONID patients reported from National Information Surveillance System for Occupational Disease and Occupational Health during 2011 to 2015 in Guangdong Province were collected and retrospectively analyzed. RESULTS: From 2011 to 2015,739 patients with ONID were reported in Guangdong Province with a rapid rising trend. The average annual growth rate was 39. 57%. The majority( 88. 63%) of patients were males. The median age of onset of the disease was 39. 0 years old. The median length of noise exposure of the patients was 8. 0 years. A total of 82. 54% of the patients came from Shenzhen,Foshan,Guangzhou and Dongguan in Pearl River Delta area. Totally 92. 42% of the patients concentrate in the manufacturing industry. A total of 454 enterprises have reported cases,89. 85% of which were non-public type. There were 2-20 cases in 125 enterprises within 5 years. CONCLUSION: The reported cases of ONID showed a straight upward trend year by year in Guangdong Province,with clustering and grouponset characteristics. Therefore,prevention emphasis must be put on key districts,key industries,key enterprises,and key populations of ONID.