Table 4.
Variables | Annual prevalence of LBP | |||
---|---|---|---|---|
No | Yes | |||
Frequency ( n ) | Percent (%) | Frequency ( n ) | Percent (%) | |
Sex | ||||
Men | 61 | 32.6 | 126 | 67.4 |
Women | 86 | 39.8 | 130 | 60.2 |
Age group | ||||
< 35 | 123 | 35.3 | 225 | 64.7 |
≥35 | 24 | 43.6 | 31 | 56.6 |
BMI (kg/m 2 ) | ||||
Normal | 121 | 36.8 | 208 | 63.2 |
Underweight | 17 | 31.5 | 37 | 68.5 |
Overweight | 9 | 45 | 11 | 55 |
Educational status | ||||
Unable to write and read | 18 | 37.5 | 30 | 62.5 |
Able to write and read | 13 | 38.2 | 21 | 61.8 |
Grade 1–8 | 48 | 41.7 | 67 | 58.3 |
Above grade 9 | 68 | 33 | 138 | 67 |
Monthly income (ETB) | ||||
≤ 5,000 | 92 | 34.2 | 177 | 65.8 |
5,000–10,000 | 46 | 43 | 61 | 57 |
≥10,000 | 9 | 33.3 | 18 | 66.7 |
Working experience (years) | ||||
≤ 5 | 118 | 38.4 | 189 | 61.6 |
>5 | 29 | 30.2 | 67 | 68.8 |
Working hours per day (h) | ||||
≤ 8 | 78 | 51.3 | 74 | 48.7 |
≥8 | 69 | 27.5 | 182 | 72.5 |
Working days per week | ||||
3 and 4 | 48 | 44.4 | 60 | 55.6 |
5 and 6 | 99 | 33.6 | 196 | 66.4 |
Static posture | ||||
No | 122 | 41.2 | 174 | 58.8 |
Yes | 25 | 23.4 | 82 | 76.6 |
Repetitive movement | ||||
No | 74 | 62.2 | 45 | 37.8 |
Yes | 73 | 25.7 | 211 | 74.3 |
Back support | ||||
No | 38 | 29.5 | 91 | 70.5 |
Yes | 109 | 39.8 | 165 | 60.2 |
Awkward posture | ||||
No | 75 | 59.1 | 52 | 40.9 |
Yes | 72 | 26.1 | 204 | 73.9 |
Alcohol | ||||
No | 90 | 31.6 | 195 | 68.4 |
Yes | 57 | 48.3 | 61 | 51.7 |
Physical activity | ||||
No | 137 | 36.2 | 241 | 63.8 |
Yes | 10 | 40 | 15 | 60 |
Job satisfaction | ||||
No | 69 | 38.5 | 110 | 61.5 |
Yes | 78 | 34.8 | 146 | 65.2 |
Job stress | ||||
No | 56 | 52.8 | 50 | 47.2 |
Yes | 91 | 30.6 | 206 | 69.4 |