Table 1.

Spinal surgeon stakeholders (N=232), subgroup analysis

	Unanswered (%)		Answered (%)		P value
Age	44.4		44.5		0.6
Male gender	152	97	73	97	1
Region					0.21
USA	13	8	9	12
UK	11	7	7	9
Canada	12	8	2	3
Europe	49	31	18	24
South America	6	4	7	9
Middle East	3	2	5	7
Asia	40	25	16	21
Australasia	8	5	5	7
Africa	15	10	6	8
Research cluster
DCM case treated yearly					0.78
0–25	28	18	15	20
25–50	55	35	24	32
50–100	47	30	19	25
100+	27	17	16	21
Year’s experience	13.6	9.7	14.2	13.5
Neurosurgeon by training	95	61	45	60	0.35
From a high-activity, DCM research cluster	43	27	16	21	0.41
High-income country	111	71	47	63	0.28

A high activity DCM research cluster was defined from a prior co-author network analysis—specifically DCM research activity clusters geographically to North America and East Asia (Japan, China and South Korea).

p<0.05

DCM, degenerative cervical myelopathy.