Variables

Frequency

Percentage

Age

      30-39 years

59

24.6

      40-49 years

125

52.1

      50 years and above

56

23.3

Marital status

      Single

24

10.0

      Married

198

82.5

      Divorced

18

7.5

Level of education

      None

14

5.8

      Primary

21

8.8

      Secondary

158

66.8

      Tertiary

47

19.6

Type of automobile engaged with

      Small cars

119

50.4

      Big cars

121

49.6

Most common work activity

      Frequent bending

240

100

      Lifting objects up to 5 kg

186

77.5

      Lifting objects up to 25 kg

105

43.8

      Sustained sitting

129

53.8

      Sustained standing

159

66.3