Prevalence of Acute Symptoms among Workers in Printing Factories

Table 2

Work characteristics, work environment ( = 150).

Characteristics	Count (%)
Work characteristics
Position
Prepress process	45 (30.0)
Printing process	58 (38.7)
Finishing process	47 (31.3)
Duration of work (years)
≤5	68 (45.3)
>5	82 (54.7)
Hours worked per day
≤8	54 (36.0)
>8	96 (64.0)
Days worked per week
≤6	35 (23.3)
>6	115 (76.7)
Environmental
Air ventilation systems
General ventilation system; (open window and doors)	52 (34.7)
Local ventilation system (hood)	98 (65.3)
Safety glasses at work
No	130 (86.7)
Yes	20 (13.3)
Cotton mask at work
No	62 (41.3)
Yes	88 (58.7)