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Table 1 Demographic and clinical characteristics of the 249 patients with NF1 and 150 control subjects

From: Hyperpigmented spots at fundus examination: a new ocular sign in Neurofibromatosis Type I

Characteristics

NF1 (n = 249)

Control (n = 150)

P value

Age (mean ± SD)

33 ± 17.1

34.5 ± 16.9

0.407b

Gender (n)

 Males

110

62

0.603a

 Females

139

88

 

Refractive error (%)

 Myopia

21.3

22.7

0.823a

 Hyperopia

6.4

9.3

0.424a

 Astigmatism

25.7

20

0.223a

  1. aFisher's Exact Test
  2. bStudent’s t-test for independent samples