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Table 1 Characteristics of the sample (standard deviations and percentages in parentheses)

From: Does the cortisol response to stress mediate the link between expressed emotion and oppositional behavior in Attention-Deficit/Hyperactivity-Disorder (ADHD)?

  N Age Males IQ
Cases with ADHD 62 10.6 (2.8) 50 (80.6%) 102.8 (14.4)
Control children 61 10.5 (2.7) 49 (80.3%) 110.6 (12.6)
Parents of cases with ADHD 62 39.2 (4.6) 3 (4.8%) not assessed
Parents of control children 61 41.2 (5.1) 5 (8.2%) not assessed