Table 1 NP-C functional disability scale (from [32] and [27])

Normal

1

Normal

1

Autonomous ataxic gait

2

Mild dysarthria^d

2

Outdoor assisted ambulation

3

Severe dysarthria^e

3

Indoor assisted ambulation

4

Non-verbal communication

4

Wheelchair bound

5

Absence of communication

5

Manipulation

Swallowing

Normal

1

Normal

1

Slight dysmetria/dystonia^a

2

Occasional dysphagia

2

Mild dysmetria/dystonia^b

3

Daily dysphagia

3

Severe dysmetria/dystonia^c

4

NG tube or gastric button feeding

4