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Table 7 Item-total correlation of the twelve Factors

From: Complaints of the arm, neck and shoulder among computer office workers in Sudan: a prevalence study with validation of an Arabic risk factors questionnaire

Domain Factors Item-total correlation
(Min-Max)
Items numbers
Work Station Factor 1: Office equipment 0.23 to 0.35 13.17.18.20
  Factor 2: Computer position 0.36 16.19
Body Posture Factor 3: Head and body posture 0.57 to 0.90 25.26.27.28. 29.30
  Factor 4: Awkward body posture 0.40 to 0.96 21. 22. 24. 32
Break Time Factor 5: Autonomy 0.23 to 0.47 50.51.54.55
  Factor 6: Break quality 0.43 to 0.62 47.48.52.53.56
Job Control Factor 7: Skill discretion 0.41 to 0.72 31.32.33.34.36
  Factor 8: Decision authority 0.44 to 0.53 35.38.39
Job Demands Factor 9: Time pressure 0.12 to 0.30 41.42.45.
  Factor 10: Task complexity 0.49 to 0.56 40.43.46
Social Support Factor 11:Social support 0.85 to 0.88 70.71.72.73.74.75.76
  Factor 12: Work flow 0.71 to 0.97 65.66.67.68.69