Table 5.

The distribution of revised Japanese Orthopaedic Association (JOA) score

Motor function (upper extremity, finger)
Score	0	1	2	3	4
Patients with cervical myelopathy (n)	3	20	65	92	53
Healthy volunteers (n)	0	0	0	1	212
Motor function (upper extremity, shoulder/elbow)
Score	−2	−1	−0.5	0
Patients with cervical myelopathy (n)	6	4	38	185
Healthy volunteers (n)	0	0	0	213
Motor function (lower extremity)
Score	0	0.5	1	1.5	2	2.5	3	4
Patients with cervical myelopathy (n)	2	1	27	32	53	18	41	59
Healthy volunteers (n)	0	0	0	0	0	0	4	209
Sensory (upper extremity)
Score	0	0.5	1	1.5	2
Patients with cervical myelopathy (n)	7	4	1	47	19
Healthy volunteers (n)	0	0	1	0	212
Sensory (trunk)
Score	0	0.5	1	1.5	2
Patients with cervical myelopathy (n)	5	9	42	18	159
Healthy volunteers (n)	0	0	0	1	212
Sensory (lower extremity)
Score	0	0.5	1	1.5	2
Patients with cervical myelopathy (n)	4	24	73	45	87
Healthy volunteers (n)	0	0	0	1	212
Bladder function
Score	0	1	2	3
Patients with cervical myelopathy (n)	1	29	58	145
Healthy volunteers (n)	0	3	6	204