COMPASS 31

The COMPASS-31 (Composite Autonomic Symptom Score-31) scale measures neurodegenerative system symptoms through 31 patient-reported questions. Assessment is through six weighted domains: orthostatic intolerance [10 points]; vasomotor [6 points]; secretomotor [7 points]; gastrointestinal [28 points]; bladder [9 points] and pupillomotor [15 points]. A higher score indicates worse autonomic dysfunction1.

1. Sletten, D. M., Suarez, G. A., & Low, P. A. (2012b). COMPASS 31: A Refined and
Abbreviated Composite Autonomic Symptom Score. Mayo Clinic Proceedings, 87(12), 1196–1201.

 

Orthostatism:

1. In the last year, have you at any time felt weak, dizzy or lightheaded, or had difficulty
thinking after standing up from sitting or lying down?
2. How often do you experience these symptoms or sensations when standing up?
3. How would you rate the severity of these sensations or symptoms?
4. In the last year, those sensations or symptoms you have experienced are:

Vasomotor:

5. In the last year, have you at any time noticed changes in the colour of your skin, e.g.
it became red, white or purplish?
6. Which parts of the body are affected by these colour changes (tick all that apply)?

7. These skin colour changes:
8. In the last 5 years, what changes (if any) have occurred in your body perspiration?
9. Do your eyes feel excessively dry?
10. Does your mouth feel excessively dry?
11. For the symptom of dry eyes or dry mouth that you have had for the longest period of
time, is this symptom:

Gastrointestinal:

12. In the past year, have you noticed any changes in how quickly you get full when eating a
meal?
13. In the last year, have you felt excessively full or persistently full (bloated feeling)
after meals?
14. In the past year, have you vomited after a meal?
15. In the past year, have you had a cramping or colicky abdominal pain?
16. In the past year, have you had any episodes of diarrhoea?
17. How often do they happen?
times per month
18. How severe are these bouts of diarrhoea?
19. Your bouts of diarrhoea are getting:
20. In the past year, have you been constipated?
21. How frequently are you constipated?
Rarely Occasionally Frequently times per month
Constantly
22. How severe are these episodes of constipation?
23. Is your constipation getting:

Bladder:

24. In the last year, have you at any time lost bladder control?
Never Occasionally Frequently times per month
Constantly
25. In the last year, have you had difficulty passing urine?
Never Occasionally Frequently times per month
Constantly
26. In the past year, have you had trouble completely emptying your bladder?
Never Occasionally Frequently times per month
Constantly

Pupillomotor:

27. In the last year, have you been bothered by bright light in your eyes when you were
not wearing sunglasses or tinted glasses?
Never Occasionally Frequently times per month Constantly
28. How severe is this sensitivity to bright light?
29. In the last year, have you had any problems focusing your eyes?
Never Occasionally Frequently times per month Constantly
30. How severe is this focusing problem?
31. Is the most troublesome symptom with your eyes (i.e. sensitivity to bright light or
trouble focusing):
Sletten, D. M., Suarez, G. A., & Low, P. A. (2012b). COMPASS 31: A Refined and
Abbreviated Composite Autonomic Symptom Score. Mayo Clinic Proceedings, 87(12), 1196–1201.