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Table 3 Age at symptom onset by current age

From: Validation of the 5-domain Niemann-Pick type C Clinical Severity Scale

Age at symptom onset (n)
Current age (n)
 < 3 months 3 months—< 2 years 2 years—< 6 years 6 years -15 years  > 15 years Total
6 months to < 4 years 1 3 1 0 0 5
4–17 years 5 3 4 3 0 15
 ≥ 18 years 1 2 2 11 13 29
Total 7 8 7 14 13 49