Table 2.
Item total correlation, Cronbach’s α for excluded items, and mean Cronbach’s α for each domain of the Brazilian Portuguese version of the Upper Extremity Questionnaire revised (MUEQ-Br revised)
| Question | Item total correlation | Cronbach’s α for excluded items |
|---|---|---|
| Work Station (Maximum domain score = 6 points) | ||
| 1. My desk (table) at work has suitable height. | 0.52 | 0.71 |
| 2. I can adjust my chair height. | 0.28 | 0.70 |
| 3. The chair I use during my work supports my lower back. | 0.35 | 0.70 |
| 4. My keyboard is placed directly in front of me. | 0.36 | 0.72 |
| 5. The screen is placed directly in front of me. | 0.48 | 0.70 |
| 6. I have enough space to work at my office. | 0.36 | 0.70 |
| Mean Cronbach’s α for the domain = 0.70 | ||
| Body posture (Maximum domain score = 18 points) | ||
| 7. During my work, I sit in an awkward body posture. | 0.51 | 0.73 |
| 8. At work, I perform repetitive tasks. | 0.59 | 0.72 |
| 9. I find my job physically exhausting. | 0.65 | 0.72 |
| 10. My head is twisted towards the left or right. | 0.42 | 0.74 |
| 11. My trunk is twisted towards the left or right. | 0.68 | 0.71 |
| 12. My trunk is in a misaligned position | 0.44 | 0.74 |
| Mean Cronbach’s α for the domain = 0.75 | ||
| Job control (Maximum domain score = 27 points) | ||
| 13. I decide how to perform my job task. | 0.54 | 0.74 |
| 14. I participate with others in decision making. | 0.61 | 0.72 |
| 15. I decide my own task changes. | 0.60 | 0.73 |
| 16. I determine the time and speed of job tasks. | 0.53 | 0.74 |
| 17. I solve work problems by myself. | 0.38 | 0.74 |
| 18. My work develops my abilities. | 0.68 | 0.72 |
| 19. In my work, I learn new things. | 0.64 | 0.73 |
| 20. I have to be creative in my work. | 0.62 | 0.72 |
| 21. I undertake different tasks in my work. | 0.47 | 0.74 |
| Mean Cronbach’s α for the domain = 0.75 | ||
| Job demand (Maximum domain score = 21 points) | ||
| 22. I work under extensive pressure. | 0.66 | 0.74 |
| 23. I find it difficult to finish my work tasks on time. | 0.71 | 0.73 |
| 24. I take extra hours to finish my work tasks. | 0.61 | 0.74 |
| 25. I do not have enough time to finish my job task. | 0.63 | 0.74 |
| 26. At work, I speed to finish my tasks on time. | 0.65 | 0.75 |
| 27. I find my work tasks difficult. | 0.55 | 0.76 |
| 28. I have too many job tasks. | 0.55 | 0.75 |
| Mean Cronbach’s α for the domain = 0.77 | ||
| Break time (Maximum domain score = 18 points) | ||
| 29. I can plan my work breaks. | 0.69 | 0.73 |
| 30. I can divide my work time. | 0.65 | 0.73 |
| 31. I can decide when to take a break. | 0.67 | 0.74 |
| 32. I alternate my body posture. | 0.51 | 0.75 |
| 33. I alternate my job task. | 0.56 | |
| 34. I find my work breaks sufficient. | 0.57 | 0.73 |
| Mean Cronbach’s α for the domain = 0.77 | ||
| Social Support (Maximum domain score = 18 points) | ||
| 35. The workflow goes smoothly. | 0.60 | 0.75 |
| 36. My work task depends on other colleagues. | 0.64 | 0.75 |
| 37. My work atmosphere is comfortable. | 0.60 | 0.75 |
| 38. If I make a mistake in my work task, I find support from my colleagues. | 0.66 | 0.75 |
| 39. If I make a mistake in my work task, I find support from my supervisors. | 0.75 | 0.74 |
| 40. My colleagues are friendly. | 0.58 | 0.76 |
| 41. My supervisors are friendly. | 0.73 | 0.74 |
| Mean Cronbach’s α for the domain = 0.77 |