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Table 4 Individual and lifestyle factors of LBP among OMPWF with univariate analysis

From: Prevalence and its risk factors for low back pain among operation and maintenance personnel in wind farms

Variable Number of workers Cases LBP (%) χ2 P
Age      
  < 25 48 41 85.4 0.839 0.657
 25~ 90 81 90.0
 30~ 13 12 92.3
Working-age      
  < 1 27 24 88.9 0.194 0.907
 1~ 64 56 87.5
 3~ 60 54 90.0
Weight (kg)      
  < 60 31 27 87.1 0.856 0.652
 60~ 60 55 91.7
 70~ 60 52 86.7
Height (cm)      
  < 170 53 48 90.6 3.949 0.139
 170~ 49 40 81.6
 175~ 49 46 93.9
Physical exercise      
 yes 38 34 89.5 0.027 1.000
 no 113 100 88.5
Smoking      
 Yes 57 51 89.5 0.049 1.000
 No 94 83 88.3
Drinking      
 Yes 130 114 87.7 1.030 0.469
 No 21 20 95.2
Using the computer time during your spare time(h)      
  < 1 17 17 100 11.926 0.008
 1~ 32 26 81.2
 2~ 51 50 98.0
 3~ 51 41 80.4
The height of chair(cm)      
  < 35 17 15 88.2 0.086 0.958
  > 50 21 19 90.5
 35–50 111 98 88.3
The height of desk (cm)      
  < 50 76 68 89.5 9.691 0.008
  > 72 50 48 96.0
 50–72 25 18 72.0
Legroom underneath the desk  
 Yes 111 96 86.5 1.906 0.240
 No 38 36 94.7
Whether the keyboard and mouse at the same height      
 Yes 137 120 87.6 1.681 0.362
 No 12 12 100.0
Backrest      
 Yes 45 36 80.0 3.610 0.069
 No 46 43 93.5
  1. LBP low back pain