Table 2. Clinical features of PD patients and healthy controls.

Group	Gender (female/male)	Age (year)	Course of disease (year)	MDS-UPDRS-III (score)	NMSS (score)	Equivalent dose of L-dopa (mg)
Control	64/84	60.3±13.4	–	–	–	–
PD	52/75	62.7±12.5	4.4±4.1	17.9±9.2	10.1±7.4	617.3±444.8

Gender is shown as the constituent ratio; other indexes are shown as the mean ± SD. PD, Parkinson’s disease; MDS-UPDRS, Movement Disorder Society-Sponsored Revision Unified Parkinson’s Disease Rating Scale; NMSS, Non-Motor Symptom Scale; PD, Parkinson’s disease; SD, standard deviation.