Abstract
BACKGROUND:
Visual Display Terminals (VDTs) are equipments in many workplaces which their use may increase the risk of visual, musculoskeletal and mental problems including insomnia.
OBJECTIVE:
To determine the relationship between duration of daily VDT use and insomnia among the Iranian bank tellers.
METHODS:
We randomly selected 382 bank tellers working with VDT. Quality of sleep and stress information were collected by Athens Insomnia Scales (AIS) and Demand-Control Model (DCM) model respectively.
RESULTS:
Out of 382 participants, 127 (33.2%) had sleep complaints and 255 (66.8%) had no sleep disorders. Moreover, the insomnia symptoms’ score were significantly high in the participants having more than 6 hours of daily VDT use after adjusting for multiple confounding factors (P < 0.001). There was no significant relationship between stress and insomnia.
CONCLUSIONS:
It seems that the low levels of stress and job satisfaction reduce the impact of VDT on sleep quality in tellers who worked less than 6 hours per day.
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