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Table 1 Demographic characteristics of all participants

From: Sleep EEG characteristics associated with total sleep time misperception in young adults: an exploratory study

Variables GS (n = 10) IWHM (n = 18) IWLM (n = 19) Statistics
Age, years 26.0 [25.0, 32.0] 30.5 [25.8, 38.2] 25.0 [23.0, 38.0] H = 3.378, p = 0.185
Sex (F/M) 5/5 9/9 16/3 χ2 = 5.616, p = 0.060
Race     χ2 = 0.000, p = 1.000
 Han 10 18 19  
 Non-Han 0 0 0  
Place of residence     χ2 = 1.233, p = 0.540
 Downtown 9 13 15  
 Suburb 1 4 3  
 Village 0 1 1  
Marriage     χ2 = 2.798, p = 0.247
 Unmarried 7 7 10  
 Married 3 10 9  
 Bereavement/divorce 0 1 0  
Family history of insomnia (Y/N) 1/9 3/15 1/18 χ2 = 1.243, p = 0.537
Family history of psychosis (Y/N) 0/10 0/18 1/18 χ2 = 1.474, p = 0.479
  1. GS: good sleeper; IWLM: insomnias with a low mismatch; IWHM: insomnias with a high mismatch