Composite Autonomic Symptom Score (COMPASS 31)

Thirty-one-item autonomic symptom questionnaire reporting weighted scores for 6 domains and a total score.

Answer each question using the requested time frame. Some follow-up questions are only relevant if the preceding screening question is positive; when they are left unanswered in this calculator, they are treated as 0 in line with the skip logic used in the official instrument.

Orthostatic intolerance

1. In the past year, have you ever felt faint, dizzy, "goofy", or had difficulty thinking soon after standing up from a sitting or lying position?

2. When standing up, how frequently do you get these feelings or symptoms?

3. How would you rate the severity of these feelings or symptoms?

4. In the past year, have these feelings or symptoms that you have experienced:

Vasomotor

5. In the past year, have you ever noticed color changes in your skin, such as red, white, or purple?

6a. What parts of your body are affected by these color changes? Hands

6b. What parts of your body are affected by these color changes? Feet

7. Are these changes in your skin color:

Secretomotor

8. In the past 5 years, what changes, if any, have occurred in your general body sweating?

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 past year, have you felt excessively full or persistently full (bloated feeling) after a meal?

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 bouts of diarrhea?

17. How frequently does this occur?

18. How severe are these bouts of diarrhea?

19. Are your bouts of diarrhea getting:

20. In the past year, have you been constipated?

21. How frequently are you constipated?

22. How severe are these episodes of constipation?

23. Is your constipation getting:

Bladder

24. In the past year, have you ever lost control of your bladder function?

25. In the past year, have you had difficulty passing urine?

26. In the past year, have you had trouble completely emptying your bladder?

Pupillomotor

27. In the past year, without sunglasses or tinted glasses, has bright light bothered your eyes?

28. How severe is this sensitivity to bright light?

29. In the past year, have you had trouble focusing your eyes?

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) getting:

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