(1) Permanent sensorineural hearing loss caused by various reasons (pure tone air conduction at any frequency of 500Hz, 1000Hz and 2000Hz)
Hearing threshold > > 25dBHL)
(2) Moderate or above conductive deafness
(3) The average hearing threshold of binaural high frequency (3000Hz, 4000Hz, 6000Hz) is ≥40dB.
Expanding data to determine the target diseases for health monitoring should be based on the following principles:
(1) If the target disease is an occupational contraindication, the relationship and correlation between the occupational hazard factors under supervision and the prescribed occupational contraindications shall be determined;
(2) If the target disease is an occupational disease, it should be a disease specified in the national occupational disease catalogue, and it should have a clear causal relationship with the monitored occupational disease hazard factors and have a certain incidence rate;
(3) Having certain monitoring means and medical examination means, which can realize the early detection of target diseases;
(4) Taking intervention measures after early detection can have a favorable impact on the outcome of the target disease.
References:
Baidu encyclopedia entry-technical specification for occupational health monitoring