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Table 1 Gracely Box Scale

From: Orthostatic intolerance in chronic fatigue syndrome

0–20 Description
20 Extremely intense
19
18 Very intense
17
16 Intense
15 Strong
14 Slightly intense
13
12 Barely strong
11 Moderate
10
9 Mild
8
7 Very mild
6
5 Weak
4 Very weak
3
2 Present
1
0 Not present
  1. Subjects graded the severity of symptoms of Dizziness and Lightheadedness. Only integers were allowed to assess symptom severity