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Table 2 Baseline characteristics of the participants in the control group (n = 255), training group (n = 282) and among decliners (n = 73).

From: Implementation of neck/shoulder exercises for pain relief among industrial workers: A randomized controlled trial

  Agreed to participate Declined to participate Agreers vs. decliners
  Control Training   P-value
Demographics:     
   Age, year 42 (10) 42 (11) 42 (12) 0.67
   Height, cm 170 (8) 168 (8) 173 (9) 0.001
   Weight, kg 73 (14) 70 (14) 72 (13) 0.83
   Body Mass Index, kg.m-2 25 (5) 25 (4) 24 (4) 0.04
   Women (%) 80% 89% 67% < 0.001
More than 30 days with pain previous year (% of participants):     
   Neck 31% 34% 17% < 0.01
   Right shoulder 20% 27% 6% < 0.001
   Left shoulder 13% 17% 11% 0.39
Pain intensity of 3 or more during previous week (% of participants):     
   Neck 31% 34% 20% < 0.05
   Right shoulder 27% 28% 8% < 0.001
   Left shoulder 17% 17% 14% 0.56
Percentage of participants spending more than half of total work time:     
   Sitting 87% 83% 92% 0.11
   Standing 37% 41% 42% 0.09
   Bend forward without arm- or hand- support 9% 11% 14% 0.38
   Twisting or bending the back 23% 32% 21% 0.20
   Hand at shoulder height or higher 1% 0% 3% 0.05
   Performing physical strenous work 10% 14% 10% 0.49
   Bent neck 24% 29% 19% 0.17
   Hand twisted or flexed 28% 33% 30% 0.94
   The same finger movements several times a minute 57% 65% 62% 0.91
   The same arm movements several times a minute 34% 38% 33% 0.60
   Static work posture 48% 51% 58% 0.19
   Kneeling 2% 0% 3% 0.26
Other work-related characteristics:     
   Weekly working hours 35 (8) 35 (8) 35 (9) 0.85
   Years working in the same type of job 15 (11) 16 (12) 12 (12) 0.07
  1. Baseline characteristics are given as mean (SD).