Prevalence of Acute Symptoms among Workers in Printing Factories

Table 4

Prevalence of eye irritation in the preceding 6 months by independent variable: position worked, duration of work, hours worked per day, days worked per week, air ventilation system, and PPE use.

Independent variable	Prevalence (%)	Count	value
Work position
Worked in printing process	94.8	55	<0.001
Did not work in printing process	26.1	24
Duration of work (years)
5	15.1	12	<0.001
≥5	84.8	67
Hours worked per day
≤8	31.7	25	<0.001
8	68.36	54
Days worked per week
6	22.8	18	<0.001
≥6	77.2	61
Air ventilation system
General system (open window and doors)	69.6	55	<0.001
Local system (hood)	30.4	24
Used safety glasses at work
No	74.7	59	<0.001
Yes	25.3	20
Used mask at work
No	45.6	36	0.075
Yes	54.4	43