Prevalence of Acute Symptoms among Workers in Printing Factories

Table 6

Prevalence of allergic skin reaction in the preceding 6 months, by independent variables: work position, duration of work, hours worked per day, days worked per week, air ventilation system, and use of PPE.

Independent variable	Prevalence (%)	Count	value
Work position
Worked in printing process	82.8	48	<0.001
Did not work in printing process	9.8	9
Duration of work (years)
<5	17.6	10	<0.001
≥5	82.5	47
Hours worked per day
≤8	8.8	5	<0.001
>8	91.2	52
Days worked per week
≤6	15.8	9	<0.001
>6	84.2	48
Air ventilation system
General system; (open window and doors)	78.9	45	<0.001
Local system (hood)	21.1	12
Used safety glasses at work
No	56.1	32	0.059
Yes	43.9	25
Used mask at work
No	64.9	37	0.002
Yes	35.1	20