INCAT (Inflammatory Neuropathy Cause and Treatment) Disability Scale

Arm disability

0 No upper limb problems

1 Symptoms, in one or both arms, not affecting the ability to perform any of the following functions: doing all zips and buttons; washing or brushing hair; using a knife and fork together; handing small coins

2 Symptoms, in one arm or both arms, affecting but not preventing any of the above mentioned functions

3 Symptoms, in one arm or both arms, preventing one or two of the above mentioned functions

4 Symptoms, in one arm or both arms, preventing three or all of the functions listed, but some purposeful movements still possible

5 Inability to use either arm for any purposeful movement

Leg disability

0 Walking not affected

1 Walking affected, but walks independently outdoors

2 Usually uses unilateral support (stick, single crutch, one arm) to walk outdoors

3 Usually uses bilateral support (sticks, crutches, frame, two arms) to walk outdoors

4 Usually uses wheelchair to travel outdoors, but able to stand and walk a few steps with help

5 Restricted to wheelchair, unable to stand and walk a few steps with help

Overall disability results from sum of arm and leg disability scores

Hughes R, Bensa S, Willison H, et al. Randomized controlled trial of intravenous immunoglobulin versus oral prednisolone in chronic inflammatory demyelinating polyradiculoneuropathy. Ann Neurol 2001;50:195-201.

INCAT disability score:

Arm grade:

Leg grade:

Total grade: