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Table 5 Distribution of postures, job demand and social support for sewers , prevalence proportion ratio (PPR) and 95% confidence interval (CI), compared with joint group (n = 300)

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

  Sewers* (n = 300) Reference groups (length of service, years)
I (0–7) (n = 150) II (8–15) (n = 90) III (> 15) (n = 60)
Number % Number % Number % Number %
PPR (95% CI) PPR (95% CI) PPR (95% CI)
Awkward posture 275 91.6 141 94.0 79 87.7 55 91.6
1.02 (0.85-1.18) 0.96 (0.76-1.15) 1.00 (0.74-1.25)
Physical exhausting 80 26.6 14 9.3 51 56.6 15 25,0
0.35 (0.29-0.41) 2.13 (1.69-2.57) 0.94 (0.70-1.17)
Extensivework 20 6.6 8 5.3 7 7.7 5 1.6
0.80 (0.67-0.92) 1.67 (1.32-2.01) 1.25 (0.93-1.56)
High work speed 222 74.0 110 73.3 72 80.0 40 66.6
1.00 (0.84-1.16) 1.08 (0.85-1.30) 0.90 (0.67-1.13)
Too manyjob tasks 148 49.3 45 30.0 68 75.5 35 58.3
0.61 (0.51-0.70) 1.54 (1.22-1.85) 1.19 (0.89-1.49)
Colleagues’ support 268 89.3 142 94.6 82 91.1 44 73.3
1.07 (0.89-1.24) 1.03 (0.82-1.24) 0.82 (0.61-1.03)
Supervisors’ support 242 80.6 130 86.6 76 84.4 36 60.0
1.08 (0.90-1.25) 1.05 (0.83-1.26) 0.75 (0.56-0.94)
  1. * Multiple answers were possible.