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Number of Times Symptoms Appeared in Decision Trees with 100-Point Scale (MS vs. ME or CFS).
| Symptom | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 | Total |
|---|---|---|---|---|---|---|
| Flu-like symptoms | 60 | 13 | 6 | 2 | 0 | 81 |
| Tender lymph nodes | 27 | 20 | 3 | 0 | 0 | 50 |
| Alcohol intolerance | 4 | 29 | 5 | 1 | 0 | 39 |
| Inability to tolerate upright position | 6 | 18 | 5 | 1 | 1 | 31 |
| Next-day soreness after non-strenuous activities | 3 | 14 | 11 | 0 | 0 | 28 |
