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Table 6 Exploratory models of multivariate logistic regression related with poor academic performance (dependent variable)

From: The problematic use of Information and Communication Technologies (ICT) in adolescents by the cross sectional JOITIC study

Internet Coefficient OR (CI 95 %) p
 Female −0.682 0.51 – 0.43–0.60) <0.001
 Good relationship with family −0.567 0.57 – 0.45–0.71) <0.001
 Binge drinking 0.398 1.49 1.20–1.85) <0.001
 Cannabis 0.485 1.62 (1.27–2.09) <0.001
 Smoking 0.820 2.27 (1.78–2.90) <0.001
 After-school activities
  1 day −0.760 0.47 (0.33–0.66) <0.001
  2 days −0.702 0.50 (0.40–0.62) <0.001
  3 days −0.833 0.44 (0.36–0.53) <0.001
 Problematic use of Internet
  Occasional problems 0.219 1.25 (1.04–1.49) 0.016
  Frequent problems 0.299 1.348 (1.053–1.727) 0.018
 Constant −0.554 0.58 <0.001
Mobile phones Coefficient OR (CI 95 %) p
 Female −0.787 0.46 (0.39–0.54) <0.001
 Good relationship with family −0.690 0.50 (0.40–0.63) <0.001
 Binge drinking 0.370 1.45 (1.17–1.79) 0.001
 Cannabis 0.374 1.45 (1.13–1.87) 0.003
 Smoking 0.843 2.32 (1.83–3.00) <0.001
 After-school activities    
  1 day −0.733 0.48 (0.34–0.67) <0.001
  2 days −0.658 0.52 (0.42–0.65) <0.001
  3 days −0.876 0.416 (0.34–0.50) <0.001
 Problematic use of mobile phone
  Occasional problems 0.611 1.843 (1.52–2.24) <0.001
  Frequent problems 0.273 1.314 (0.82–2.10) 0.254
 Constant −0.359 0.699 0.006
Video games Coefficient OR (CI 95 %) p
 Female −0.704 0.49 (0.41–0.60) <0.001
 Good relationship with family −0.645 0.53 (0.41–0.67) <0.001
 Binge drinking 0.392 1.48 (1.17–1.87) 0.001
 Cannabis 0.406 1.50 (1.15–1.97) 0.003
 Smoking 0.954 2.60 (2.00–3.37) <0.001
 After-school activities
  1 day −0.725 0.48 (0.34–0.69) <0.001
  2 days −0.678 0.51 (0.40–0.64) <0.001
  3 days −0.906 0.40 (0.33–0.50) <0.001
 Problematic use of video games
  Occasional problems 0.042 1.04 (0.85–1.28) 0.692
  Frequent problems 0.483 1.62 (1.18–2.23) 0.003
 Constant −0.413 0.66 0.009