Hoehn and Yahr staging scale

Hoehn and Yahr staging scale

(hān, hōn; yahr)
[Margaret M. Maier Hoehn, U.S. neurologist; Melvin D. Yahr, U.S. neurologist, 1917–2004]
A rating instrument to assess and stage patients with movement disorders such as Parkinson disease.
References in periodicals archive ?
The fifth subscale is a modified version of the Hoehn and Yahr Staging Scale (Hoehn & Yahr, 1967), which the clinician uses to stage the disease on a scale ranging from 0 (no signs of disease) to 5 (wheelchair bound or bedridden unless aided).
Patients who had never smoked and who had mild to moderate disability according to the modified Hoehn and Yahr Staging Scale were included in the study.