Table 1. Clinical outcomes of the levels of schwannoma at cervical vertebrae.

Groups	n	Estimated bloodloss (ml)	POSTJOA-C	PRE VAS	POST VAS
A	11	345.130±14.78	13.6±2.6	7.6±0.8	1.6±0.5
B	12	330.35±11.95	14.5±2.2	7.5±0.6	1.7±0.8
C	13	791.61±12.81	13.8±2.8	7.7±0.9	1.7±0.3

This table shows that the clinical outcomes of the levels of schwannoma at cervical vertebrae.

PRE: preoperative; POST: postoperative; JOA-C: Japanese Orthopedic Association scores (JOA scores) for cervical vertebra; VAS: Visual Analogue Pain Score.

Data are expressed as the mean ± standard deviation.