Table 1.

Patient demographics and clinical characteristics.

	Organic tremor (79/116)	Functional tremor (26/116)	Mixed functional/organic tremor (7/116)
Gender (male)	43 (54)	7 (27)	4 (57)
Age of onset (y)	46 (31–59)	37 (31–48)	40 (20–56)
Duration of symptoms (y)	3 (1–15)	1.5 (1–9)	11 (2–15)
Anxiety	19 (24)	13 (50)	2 (29)
Depression	28 (35)	17 (65)	3 (43)
MRI completed	41 (51)	10 (38)	4 (57)

Categorical variables are shown as number (percentage, or interquartile range). Four patients had no tremor on testing and were not included.