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Table 4 Comparison between HS and standard NIH diagnostic criteria: diagnostic indicators, rate (95% CI)

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

NIH diagnostic criteria

Sensitivity (% and 95% CI)

Specificity (% and 95% CI)

Café-au-lait spots

98.1 (94.7–99.5)

100 (97.5–100)

Freckling

97.3 (93.3–98.9)

100 (97.5–100)

Lisch nodules

87.9 (88.3–91.4)

100 (97.5–100)

Neurofibromas

77.5 (70.4–83.2)

100 (97.5–100)

Optic pathway gliomas

9.7 (6.6–14.0)

100 (97.5–100)

Distinctive osseous lesions

2.5 (0.9–6.2)

100 (97.5–100)

First-degree relative affected

44.5 (36.9–52.3)

100 (97.5–100)

Hyperpigmented spots

24.1 (19.2–29.8)

100 (97.5–100)

  1. CI confidence interval