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Table 2 Mean (± SD) number of current comorbid disorders in participants with IED or DBD

From: Comorbidity of disruptive behavior disorders and intermittent explosive disorder

DisorderNCS-AS Reanalysis
Mean # (± SD) of Dx
NCS-R Reanalysis
Mean # (± SD) of Dx
Clinical research analysis
Mean # (± SD) of Dx
Intermittent explosive disorder1.43 ± 1.26a1.42 ± 1.52b0.67 ± 0.88c
Attention Deficit/hyperactivity disorder1.81 ± 1.402.05 ± 1.691.79 ± 1.14
Oppositional defiant disorder1.48 ± 1.282.87 ± 1.901.76 ± 1.09
Conduct disorder1.60 ± 1.372.79 ± 2.101.31 ± 0.79
  1. aT-test: IED < ADHD (t726 = 3.71, p < 0.001), IED = ODD (t912 = 0.55, p = 0.551), IED = CD (t812 = 1.83, p = 0.068)
  2. bT-test: IED < ADHD (t426 = 4.05, p < 0.001), IED < ODD (t291 = 6.07, p < 0.001), IED < CD (t269 = 4.61, p < 0.001)
  3. cT-test: IED < ADHD (t629 = 7.88, p < 0.001), IED < ODD (t603 = 5.00, p < 0.001), IED < CD (t602 = 2.88, p < 0.005)