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Table 1 Demographic Information of Cases (without RLS) and Controls

From: IL1B polymorphism is associated with essential tremor in Chinese population

  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)
  1. ET essential tremor. RLS restless legs syndrome