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Table 3 Parameter estimates for aircraft and road traffic noise and early biological risk on all SDQ measures

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

   Model 1 (unadjusted) Model 2 (adjusted*) Model 3 (adjusted*)
   β SE CI p β SE CI p β SE CI p
Overall SDQ Constant 10.07 1.56 7.01, 13.12   14.21 3.40 7.54, 20.88   14.96 3.39 8.31, 21.61  
  Aircraft noise -0.02 0.02 -0.05, 0.02 .35 0.01 0.01 -0.02, 0.04 .39 0.01 0.01 -0.02, 0.04 .51
  Road traffic noise 0.00 0.02 -0.04, 0.05 .84 -0.02 0.02 -0.05, 0.01 .27 -0.02 0.02 -0.05, 0.01 .21
  Early biological risk 1.81 0.43 0.97, 2.65 .00      1.64 0.41 0.84, 2.45 .00
Emotional symptoms Constant 2.28 0.47 1.36, 3.19   3.59 1.32 1.00, 6.18   3.82 1.32 1.24, 6.40  
  Aircraft noise -0.00 0.01 -0.01, 0.01 .91 0.00 0.01 -0.01, 0.01 .34 0.00 0.01 -0.01, 0.01 .97
  Road traffic noise 0.00 0.01 -0.01, 0.02 .81 0.00 0.01 -0.01, 0.01 .97 -0.00 0.01 -0.01, 0.01 .89
  Early biological risk 0.61 0.16 0.30, 0.92 .00      0.52 0.16 0.21, 0.83 .00
Conduct problems Constant 2.57 0.51 1.57, 3.56   2.27 0.98 0.35, 4.18   2.45 0.98 0.54, 4.36  
  Aircraft noise -0.02 0.01 -0.03, -0.00 .01 -0.01 0.00 -0.01, 0.00 .23 -0.01 0.00 -0.01, 0.00 .17
  Road traffic noise -0.00 0.01 -0.01, 0.01 .91 -0.01 0.01 -0.02, -0.00 .04 -0.01 0.01 -0.02, -0.00 .03
  Early biological risk 0.43 0.12 0.19, 0.66 .00      0.40 0.12 0.17, 0.63 .00
Hyperactivity Constant 3.46 0.71 2.08, 4.85   5.95 1.51 2.99, 8.91   6.02 1.51 3.06, 8.99  
  Aircraft noise -0.01 0.01 -0.02, 0.01 .56 0.01 0.01 0.00, 0.02 .05 0.01 0.01 0.00, 0.02 .05
  Road traffic noise 0.01 0.01 -0.01, 0.03 .30 0.00 0.01 -0.01, 0.01 .96 -0.00 0.01 -0.01, 0.01 .94
  Early biological risk 0.17 0.19 -0.21, 0.54 .39      0.16 0.18 -0.20, 0.52 .38
  1. * model adjusted for country, age, gender, employment status, crowding, home ownership, mother's educational achievement, long-standing illness, main language spoken at home, parental support for schoolwork and classroom glazing type; SE, standard error; CI, confidence interval; SDQ, strengths and difficulties questionnaire.