Table 2.

Characteristics of patients with first-listed diagnosis of Parkinson's disease.

Item (continuous variable)		Mean (SD)
Age (years)		66.04 (3.98)
Disease duration (years, valid n = 2,549)#	Confirmed diagnosis of PD at initial visit (valid n = 1,485)	4.59 (4.26)
	Suspected diagnosis of PD at initial visit (valid n = 348)	1.11 (1.68)
	Unclear status of PD diagnosis at initial visit (valid n = 716)	2.60 (3.37)
Item (categorical variable)	Category	Number (%)
Gender	Male	1,632 (50.90)
	Female	1,574 (49.10)
Confirmed diagnosis of PD at initial visit		1,930 (60.20)
Not under regular antiparkinsonian treatment (n = 61, 3.16%*)	Waiting to initiate antiparkinsonian treatment	39 (2.02)*
	Intolerance to side effects	21 (1.09)*
	Refusal of conventional antiparkinsonian medications	11 (0.57)*
Under regular antiparkinsonian treatment (n = 1,869, 96.84%*)	Insufficient treatment response	77 (3.99)*
	Progress of PD	312 (16.17)*
	Non-motor symptoms	233 (12.07)*
	Complementary to current treatments	1,237 (64.09)*
Suspected diagnosis of PD at initial visit		395 (12.32)
Unclear status of PD diagnosis at initial visit		881 (27.48)
PD onset age	Unclear	471 (14.69)
	≤ 50	410 (12.79)
	>50 but ≤ 60	742 (23.14)
	>60 but ≤ 70	964 (30.07)
	>70 but ≤ 80	497 (15.50)
	>80	122 (3.81)
Outpatient departments	Internal medicine outpatient clinic	2,436 (75.98)
	PD chronic care clinic	444 (13.85)
	Acupuncture and Moxibustion department	124 (3.87)
	Surgical outpatient clinic	55 (1.72)
	Orthopedic outpatient clinic	40 (1.25)
	Emergency department	31 (0.97)
	Others	76 (2.37)

^#Time from the onset of motor symptoms; ^*Percentage among 1,930 PEs with confirmed PD diagnosis; PD, Parkinson's disease.