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Table 1 Characteristics of children with NF1

From: Motor problems in children with neurofibromatosis type 1

Variable
Demographic characteristics n = 69
Frequency (%)
 Age 8.7 (4.1)a
 Gender
  Male 40 (58)
  Female 29 (42)
 Type of education
  Regular education 48 (70)
  Special education 21 (30)
  Social economic status b 0.34 (1.29)a
Mode of inheritance NF1
 De novo mutation 39 (57)
 Familial mutation 29 (42)
 Unknown 1 (1)
Neuropsychiatric problems
 Attention-deficit/hyperactivity disorder (ADHD)
  ADHD combined type 25 (36)
  ADHD inattentive type 11 (16)
  ADHD hyperactive/impulsive type 2 (3)
  Total 38 (55)
 Using stimulant medication 18 (26)
 Autism spectrum disorder (PDD-NOS) 7 (10)
Neurologic and orthopaedic problems
 Hypotonia 14 (20)
 Hypermobility (Beighton criteria) 13 (19)
 Scoliosis 7 (10)
  1. aMedian (interquartile range)
  2. bAverage SES in 2010 = 0.17; higher scores indicate higher SES