Table 3 :
Specific weak areas in knowledge
| Knowledge | Items |
Correct answers No. (%) |
|
|---|---|---|---|
| General aspects about noise | B1 | Deafness due to noise is a more common problem among sawmill workers as compared to office workers | 71 (85.%) |
| B2 | Loud noise in sawmills can cause hearing loss | 65 (78.3) | |
| B3 | Hearing deceriorates when sawmill workers are exposed to hazardous noise | 69 (83.1) | |
| Causes of hearing loss | B4 | Deafness can occur even if a worker is exposed to intermittent noise for a long period | 53 (63.0) |
| B5 | Hobbies like shooting and listening to loud music can cause deafness | 49 (58.3) | |
| Risk factors | B6 | If people are exposed to noise, men are at higher risk of deafnss than women | 26 (31.0) |
| Signs and symptoms of NIHL | B7 | Pus discharge from ear is an early sign of deafness due to exposure to loud noise | 17 (20.2) |
| Treatment | B8 | Deafness due to noise can treated by taking medicine | 13 (15.5) |
| Prevention | B9 | Deafness due to noise will recover to normal if a person is no longer exposed to excessive noise | 45 (54.3) |
| B10 | There is law in Malaysia that protects workers who are exposed to noise in the workplace | 42 (50.0) | |
| Law | B11 | It’s the responsibility of the employer to provide ear plugs | 73 (88.0) |
| B12 | It’s the responsibility of the employees to wear ear plugs while working | 76 (91.6) |