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Table 1 Comparison of clinical characteristics, personality, and temperament between patients with Internet addiction, those with alcohol dependence and healthy controls

From: Shared psychological characteristics that are linked to aggression between patients with Internet addiction and those with alcohol dependence

  Internet addiction (N = 30)   Alcohol dependence (N = 30)   Healthy control (N = 30)   p value Post hoc tests
Mean SD Mean SD Mean SD
Age (years) 22.67 6.69 30.03 5.89 25.33 2.77 <.001 A > H > I
Education (years) 15.47 8.00 13.40 2.37 14.80 1.67 .131  
Duration of illness 11.17 5.64 12.67 6.10     
BDI 17.00 10.90 22.73 13.79 3.43 4.34 <.001 I = A > H
BAI 16.07 12.73 18.67 13.59 3.77 3.63 <.001 I = A > H
IAT 76.33 5.79       
AUDIT-K    25.07 6.70     
NEO-PI-R         
  Agreeableness 38.03 5.78 37.33 6.09 42.63 4.55 .001 H > I = A
  Conscientiousness 33.33 8.44 36.43 9.93 42.50 5.09 <.001 H > I = A
  Extraversion 34.87 7.71 36.37 8.50 42.27 4.13 <.001 H > I = A
  Neuroticism 39.13 7.11 39.07 8.37 28.50 6.69 <.001 I = A > H
  Openness to experience 36.70 5.31 36.47 4.08 39.83 4.21 .008 H > I = A
BIS-11         
  Cognitive 18.33 3.63 19.50 3.85 16.43 2.42 .006 A > I = H
  Motor 22.83 6.90 23.37 7.29 17.47 4.71 <.001 I = A > H
  Nonplan 27.07 5.75 28.57 5.35 22.67 2.56 <.001 I = A > H
  Total 68.40 14.95 71.43 14.39 56.57 7.59 <.001 I = A > H
Anger expression         
  State 26.07 14.15 22.67 15.23 10.77 1.50 <.001 I = A > H
  Trait 22.90 5.02 23.70 8.18 17.70 5.48 .001 I = A > H
  1. Kruskal–Wallis test was used to compare distribution of ranks across the three groups. For post hoc comparison, Mann–Whitney U test with a Bonferroni correction was used.