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Table 2 Parameter estimates for sociodemographic status variables on the total SDQ score.

From: Environmental noise exposure, early biological risk and mental health in nine to ten year old children: a cross-sectional field study

  Β SE 95% CI
Fixed Coefficients    
   Spain 1.000   
   United Kingdom -2.131 0.392 -2.899, -1.363*
   Netherlands -3.595 0.408 -4.395, -2.795*
   Gender -0.875 0.249 -1.363, -0.387*
   Age -0.001 0.001 -0.003, 0.001
   Employment status 0.430 0.388 -0.330, 1.190
   Crowding at home -0.437 0.326 -1.076, 0.202
   Home ownership 1.736 0.315 1.119, 2.353*
   Mother's educational achievement 2.400 0.455 1.508, 3.292*
   Long-standing illness 1.790 0.290 1.222, 2.358*
   Main language spoken at home -0.239 0.460 -1.141, 0.663
   Parental support for school work -0.306 0.070 -0.443, -0.169*
   Classroom glazing type 0.334 0.130 0.079, 0.589*
Random Parameters    
   Level 2: school 0.000 0.000  
   Level 1: pupil 28.900 0.938  
  1. * p < .05; SE, standard error; CI, confidence interval; SDQ, Strengths and Difficulties Questionnaire.