Table 3: Pearson correlation coefficients of APD with clinical symptoms

	APD in MRI	APD in axial-loaded MRI	Difference
Duration of symptoms	-0.16	-0.18	0.47*
Walking distance	0.29*	0.40**	-0.25*
VAS for back pain	-0.72**	-0.83**	0.26*
VAS for leg pain	-0.58**	-0.69**	0.25*
ODI	0.11	0.098	0.02
JOA	-0.66**	-0.70**	0.11

Values were Pearson correlation coefftcient (rs)
P<0.05;
P<0.01