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Table 4: Spearman correlation coefficients relating postoperative clinical scores and baseline fractional anisotropy in various regions of the spinal cord
Anatomic Region Clinical Measure Spearman Correlation P Value n
C7-T1 mJOA 0.02 .93 15
Nurick 0.17 .56 15
SF-36 (MCS) 0.1 .76 13
SF-36 (PCS) −0.07 .84 13
NDI 0.11 .73 13
Level of stenosis mJOA 0.06 .84 15
Nurick −0.22 .44 15
SF-36 (MCS) 0.28 .38 13
SF-36 (PCS) −0.21 .51 13
NDI −0.61^{^a} .04^{^a} 13^{^a}
C2-C3 mJOA −0.26 .38 15
Nurick 0.17 .56 15
SF-36 (MCS) −0.4 .2 13
SF-36 (PCS) 0.1 .75 13
NDI 0.36 .25 13
Note:—MCS indicates mental component score; PCS, physical component score.
↵a Indicates values are significant.

Anatomic Region	Clinical Measure	Spearman Correlation	P Value	n
C7-T1	mJOA	0.02	.93	15
	Nurick	0.17	.56	15
	SF-36 (MCS)	0.1	.76	13
	SF-36 (PCS)	−0.07	.84	13
	NDI	0.11	.73	13
Level of stenosis	mJOA	0.06	.84	15
	Nurick	−0.22	.44	15
	SF-36 (MCS)	0.28	.38	13
	SF-36 (PCS)	−0.21	.51	13
	NDI	−0.61^{^a}	.04^{^a}	13^{^a}
C2-C3	mJOA	−0.26	.38	15
	Nurick	0.17	.56	15
	SF-36 (MCS)	−0.4	.2	13
	SF-36 (PCS)	0.1	.75	13
	NDI	0.36	.25	13