Huntington's Disease: Two-Year Observational Follow-Up of Executive Function Evaluation with CNS Vital Signs Test in an Adult Patient

Table 1

Clinical levels of severity (CNSVS). The CNSVS [5] contains five degrees of clinical severity based on a database with more than 1900 subjects, aged between 8 and 90 years.

Above	>110	High function and high capacity
Average	90–110	Normal function and normal capacity
Low Average	80–90	Sight deficit and sight impairment
Low	70–79	Moderate deficit and impairment possible
Very Low	<70	Deficit and impairment likely