Table 1 Characteristics of ONH cohort

Gender

   Female

58.4

59/101

   Male

41.6

42/101

Referral Source ^a

   Pediatrician

69.3

70/101

   Ophthalmologist

14.9

15/101

   Neurologist

5.9

6/101

   Other

5.9

6/101

   Self-referral

2

2/101

   Unknown

2

2/101

Race/Ethnicity ^b

   Caucasian

44.6

45/101

   Hispanic

24.8

25/101

   Native American

12.9

13/101

   Other

7

7/101

   Not documented

10.9

11/101

Laterality of ONH

   Bilateral

74.3

75/101

   Unilateral

11.9

12/101

   Not documented

13.9

14/101

Brain Malformations ^c

   Pituitary abnormalities

44.1

26/59

   Absence of septum pellucidum

46.8

36/77

   Corpus callosum hypoplasia

34.7

25/72

   Cortical dysplasia

16.9

14/83

   Schizencephaly

10.9

9/83

   Hydrocephalus

8.4

7/83

   Arachnoid cyst

6.0

5/83

Endocrinopathies ^d

   Any endocrinopathy

72.3

73/101

   GH deficiency

62.0

57/92

   Hypothyroidism

54.0

54/100

   Adrenal insufficiency

51.1

47/92

   Diabetes insipidus

27.7

28/101