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) | |||