Table 1

Potential predictors of shoulder pain

Individual factors:
  Age (classified into four categories)1-150
  Body mass index (weight/height2, classified into four categories)1-150
  Mental stress (classified into four categories)1-150
  Smoking (non-, ex-, current smoker)
  Previous shoulder injuries (yes/no)
 Work related factors:
  Repetitive work (h/day, four categories)
  Hand-arm vibration (h/day, four categories)
  Daily lifting of loads (index, classified into five categories)
  Amount of twisting movements of the trunk during a workday (classified into three categories)1-150
  Working with the trunk flexed forward (h/day, four categories)1-150
  Working with a hand above shoulder level (h/day, classified into three categories)1-150
  Working with rotated neck (h/day, three categories)1-150
  Working in sitting position (h/day, three categories)1-150
  Physical strenuousness of work (classified into three categories)1-150
  Overload at work (difficulty at work, hurry at work, scoring of both 1–5, sum score variable, classified into three categories)1-150
  Risk of accident at work due to tripping, slipping, climbing stairs, etc. (classified into three categories)
  Frequency of physical exercise (times/week, classified into three categories)
  Sports activity (added score variable, classified into three categories)1-150
 Different types of sports: (indices, classified into three categories)
  Jogging, orienteering, competition walking1-150
  Cross country skiing, biathlon, skating1-150
  Swimming, water polo
  Trekking, hunting
  Keep fit weight lifting, competition weight lifting, body building
  Gymnastics, aerobic dance
  Downhill skiing
  Tennis, squash, badminton
  Basketball, European football (soccer), floorball
  Ice hockey, bandy
  Other modes
  • 1-150 Variables with significance (at 5% level) in exploratory analyses.