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

Eltayeb et al. Environmental Health 2008 7:33   doi:10.1186/1476-069X-7-33