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Table 3 Characteristics of the MPS I and MPS III patients. At the time of this study, one of the MPS III patients (aged 4 years and 9 months) was considered too young to determine the phenotypic severity

From: Failure to shorten the diagnostic delay in two ultra-orphan diseases (mucopolysaccharidosis types I and III): potential causes and implications

Patient characteristics
MPS I N MPS III N
Total number of patients 29 Total number of patients 46
 Male 15  Male 27
 Female 14  Female 19
MPS I phenotype MPS III subtype
 Hurler 20  MPS IIIA 28
 Non-Hurler 9  MPS IIIB 9
   MPS IIIC 9
MPS III phenotype
 Rapidly progressing (RP) MPS III 16
 Slowly progressing (SP) MPS III 28
 Unknown 1
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