Table 1 Prince Henry Hospital akathisia rating scale.

OBJECTIVE RATINGS: (ratings by observer)
I. Sitting
1. Semipurposeful/purposeless leg/feet movement	0 1 2 3
2. Semipurposeful hand/arm movements	0 1 2 3
3. Shifting body position in chair	0 1 2 3
4. Inability to remain seated	0 1 2 3
II. Standing
1. Purposeless/semipurposeless leg/feet movements	0 1 2 3
2. Shifting weight from foot‐to‐foot and/or walking on spot	0 1 2 3
3. Inability to remain standing on one spot (walking or pacing)	0 1 2 3
Sum score
SUBJECTIVE RATINGS: (three questions were asked)
1. Do you feel restless, or urge to move, especially in the legs?	0 1 2 3
2. Are you unable to keep your legs still?	0 1 2 3
3. Are you unable to remain still, standing or sitting?	0 1 2 3
Key: 0–3: absent, mild, moderate, severe
0—absent
1—mild and present some of time
2—mild and present most of the time or severe and present some of the time
3—severe and present all the time
Sum score
TOTAL SCORE

*Reprinted from Sachdev P. A rating scale for acute drug‐induced akathisia: development, reliability, and validity. Biol Psychiatry 1994;35:270–1. Copyright (1994) with permission from Society of Biological Psychiatry.

Global rating (by rater): 0, absent; 1, mild; 2, moderate; 3, severe.