Table 2. Interpretation of a positive screening of suspected occupational diseases.

Occupational NIHL	The total number of ‘yes’ answers is at least 3 for items 1–14.
Occupational skin disease	Criteria 1‘Yes’ for at least 1 item in question 1And‘Yes’ for question 2Criteria 2‘Yes’ for any symptoms in question 4
Occupational musculoskeletal disorder	‘Yes’ at least 1 from item 1.1And‘Yes’ at least 1 from items 1.2–1.3AndScore>5 for item 2.1AndScore>2 for item 2.2
Occupational respiratory disease	The number of ‘Yes’ answers is at least 1 for items 1 to 4.
Occupational neurotoxicity	If the number of ‘Yes’ answers is a minimum of 3.
Occupational mental illness	DASS-21 scoring
	Meaning	Depression	Anxiety	Stress
	Normal	0–9	0–7	0–14
	Mild	10–13	8–9	15–18
	Moderate	14–20	10–14	19–25
	Severe	21–27	15–19	26–33
	Extremely severe	28+	20+	34+
	JSL scoringScores of 17–39 were categorised into a low level of job stress, scores of 40–61 were grouped under moderate levels of job stress, and scores between 62 and 85 were classified under the high level of job stress.

DASS-21Depression Anxiety and Stress Scale 21JSLJob Stress Level