Table 1.

Descriptive characteristics of the study population*

	Male N = 163	Female N = 83
Gender	65.2%	34.8%
Age
25–35	76.1	87.4
36–45	17.8	12.6
46–55	6.1	0.0
Numbers working hours/Day
4 to7 hrs	37.4	46.0
8 hrs	48.5	48.3
More than 8 hrs	14.1	04.6
Numbers of working hours with computer/Day
3 to 5 hrs	31.9	27.6
6 to 8 hrs	59.5	65.5
> 8 hrs	08.0	02.3
Numbers of working years in current position
6 month to 1 year	28.8	26.4
2 to 4 years	47.2	58.6
5 years and more	23.9	14.9

*Total Number of Subjects = 250