Table 3.

Comparisons Between 63 Participants and Their 91 Siblings Based on Interviews

ParticipantsSiblings
Was there an IEP?
 Yes226χ2 = 18.4
 No4084P = .00002
Were there special  education classes?
 Yes166χ2 = 9.27
 No4785P = .002
Was there ST/OT/PT?
 Yes122χ2 = 10.8
 No5189P = .00099
Was there a diagnosis  of ADHD?
 Yes40Fisher
 No5991P = .03
Was there any form
 of special help?
 Yes257χ2 = 21.24
 No3884P = .0000041
Sex difference—males
 Delays202χ2 = 17.3
 No delays2239P = .0003
Sex difference—females
 Delays54Fisher
 No delays1641P = .13
  • ST/OT/PT indicates speech therapy/occupational therapy/physical therapy; ADHD, attention deficit hyperactivity disorder (any type).