The Webster Rating Scale sums 10 clinical items, each scored from 0 (normal) to 3 (severe impairment). The total score ranges from 0 to 30.

Item	Scored domain
1. Bradykinesia of hands	Slowness of hand movements and handwriting
2. Rigidity	Neck and upper limb muscle stiffness
3. Posture	Standing posture and flexion
4. Arm swing	Arm swing during walking
5. Gait	Stride length, turning and freezing
6. Tremor	Rest and action tremor amplitude
7. Facial expression	Facial expressivity and masking
8. Seborrhoea	Oiliness and sweating of face and scalp
9. Speech	Clarity, loudness and modulation
10. Self-care	Independence in dressing, feeding and walking

Total Webster score = sum of all 10 item scores (0–30).

Total score	Interpretation
0	Normal on Webster scale
1–10	Early / mild Parkinson's disability
11–20	Moderate Parkinson's disability
21–30	Severe / advanced Parkinson's disability

Webster Rating Scale for Parkinson's Disease