Oral Health of Parkinson’s Disease Patients: A Case-Control Study

Table 4

Distribution, including percentages, of the Parkinson’s disease patients by duration (D) and Hoehn & Yahr stage (HY) of the disease.

D/HY	Number of patients	Percentage
D less than 5 years	20	27
D between 5 and 9 years	19	26
D 10 years or more	35	47
HY1	16	22
HY2	31	42
HY3	11	14
HY4	12	16
HY5	4	6