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Table 1 The general characteristics of the study population in this study

From: The association between parental depression and adolescent’s Internet addiction in South Korea

Variables N/mean % (weighted)/SD IAS
Mean SD p-value
Parents
 Mother’s depression 0.0049
  Yes 36 4.75 25.61 ± 5.08  
  No 551 95.26 23.53 ± 4.33  
 Father’s depression 0.9898
  Yes 30 4.19 24.38 ± 4.55  
  No 557 95.81 23.59 ± 4.38  
 Mother’s economic status 0.0016
  Salary employee 287 48.76 24.17 ± 4.54  
  Employer or self-employed 91 15.32 23.19 ± 4.65  
  Not employed or unemployed 209 35.92 23.08 ± 3.99  
 Father’s economic status 0.2665
  Salary employee 400 71.19 23.75 ± 4.66  
  Employer or self-employed 157 24.32 23.20 ± 3.55  
  Not employed or unemployed 30 4.50 23.93 ± 4.70  
 Mother’s education level 0.1000
  High school or under 347 56.53 23.90 ± 4.62  
  University or above 240 43.47 23.27 ± 4.01  
 Father’s education level 0.0003
  High school or under 318 48.81 24.32 ± 4.72  
  University or above 269 51.19 22.97 ± 3.86  
 Household income 0.5061
  Low 147 19.78 23.82 ± 4.16  
  Mid-low 149 22.97 23.37 ± 4.08  
  Mid-high 148 25.63 24.04 ± 4.59  
  High 143 31.62 23.36 ± 4.72  
Adolescents
 Gender < 0.0001
  Male 293 52.28 24.44 ± 4.62  
  Female 294 47.72 22.73 ± 3.98  
 School type  
  Elementary school 303 41.70 23.24 ± 3.90  
  High school 284 58.30 23.90 ± 4.84  
 Academic performance < 0.0001
  Bad or very bad 105 19.44 25.28 ± 5.61  
  Normal 199 36.50 23.70 ± 4.72  
  Good or very good 283 44.07 22.83 ± 3.34  
 Academic achievement stress scorea 8.74 ± 2.92    
 Depression and anxiety scorea 4.14 ± 4.38    
 Attention problems scorea 3.45 ± 3.79    
 Social problem scorea 2.35 ± 2.84    
 Delinquency scorea 0.73 ± 1.45    
 Aggression scorea 2.79 ± 3.69    
 Total 587 100.00 23.64 ± 4.38  
  1. aMean and standard deviation (SD) of the continuous independent variables in this study