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Table 4 Distribution of persistent complaints in different parts of the body of cutters , prevalence proportion ratio (PPR) and 95% confidence interval (CI), compared with joint group (n = 50)

From: The effects of a medical hypnotherapy on clothing industry employees suffering from chronic pain

  Cutters* (n = 50) Reference groups (length of service, years)
I (0–7) (n = 30) II (8–15) (n = 12) III (> 15) (n = 8)
Number % Number % Number % Number %
PPR (95% CI) PPR (95% CI) PPR (95% CI)
Neck 27 54.0 9 30.0 10 83.3 8 100
0.55 (0.35-0.75) 1.54 (0.67-2.41) 1.85 (0.56-3.13)
Shoulder 36 72.0 18 60.0 11 91.6 7 87.5
0.84 (0.54-1.14) 1.27 (0.55-1.98) 1,22 (0.37-2.06)
Elbow 15 30.0 4 13.3 8 66.6 3 33.3
0.44 (0.28-0.59) 2.22 (0.96-3.47) 1.25 (0.38-2.11)
Wrist/hands 24 48.0 6 20.0 10 83.3 8 100
0.42 (0.27-0.57) 1.73 (0.75-2.71) 2.08 (0.64-3.52)
Upper back 8 16.0 0 0 5 41.6 3 37.5
0   2.60 (1.13-4.07) 2.35 (0.72-3.98)
Low back 7 14.0 0 0 2 16.6 5 62.5
0   1.19 (0.51-1.86) 4.46 (1.37-7.55)
Hip/Thigh 0 0 0 0 0 0 0 0
0   0   0  
Knee 13 26.0 1 3.3 6 50.0 7 87.5
0.13 (0.08-0.17) 1.92 (0.83-3.00) 3.38 (1.03-5.72)
Ankle/Shank/Feet 22 44.1 11 36.6 9 75.0 2 25.0
1.00 (0.64-1.36) 2.05 (0.89-3.20) 0.68 (0.21-1.15)
  1. * Multiple answers were possible.