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Table 1 Demographic characteristics of the participants (n = 151)

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

Characteristics   N (%) Mean (SD)
Age (yr) <25 48 (31.79) 25.96 (2.26)
  25~ 90 (59.60)
  30~ 13 (8.61)
Height (cm) <170 53 (35.10) 171.89 (5.41)
  170~ 49 (32.45)
  175~ 49 (32.45)
Weight (kg) <60 31 (20.53) 66.87 (9.26)
  60~ 60 (39.74)
  70~ 60 (39.74)
Working-age (yr) <1 27 (17.88) 3.60 (2.19)
  1~ 22 (14.57)
  2~ 102 (67.55)
Working hours per week (h) <40 13 (8.61) 44.70 (1.86)
  40~ 79 (52.32)
  45~ 59 (39.07)
Education High school 1 (0.66)  
  Bachelor’s degree 136 (90.07)  
  Higher than Bachelor’s degree 14 (9.27)