Table 1.

Demographic Information of Cases (without RLS) and Controls

	ET sufferers without RLS (N = 200)	Non-ET/RLS controls (N = 229)	P value
Gender, female, N (%)	100 (50.00)	136 (59.39)	0.051
Age, mean (SD), years	65.83 (7.92)	64.30 (13.30)	0.156
Familial history, N (%)	100 (50)	–	–

ET essential tremor. RLS restless legs syndrome