Age-related radiographic parameters difference between the degenerative lumbar spinal stenosis patients and healthy people and correlation analysis

Table 8 The correlation analysis among other radiographic parameters

	DD and CEF		DD and LF		DD and ROM		CEF and LF		CEF and ROM		LF and ROM
	r	P	r	P	r	P	r	P	R	P	r	P
L1-2	0.408	< 0.001*	− 0.051	0.627	0.024	0.819	0.007	0.950	− 0.055	0.601	− 0.393	0.101
L2-3	0.421	< 0.001*	0.019	0.859	− 0. 233	0.002*	− 0.014	0.892	− 0.235	0.024*	0.018	0.868
L3-4	0.169	0.106	0.105	0.317	− 0.098	0.348	− 0.083	0.431	− 0.191	0.066	0.072	0.493
L4-5	0.012	0.911	0.204	0.050	0.043	0.686	− 0.014	0.894	0.066	0.536	− 0.142	0.178
L5-S1	0.396	< 0.001*	0.114	0.279	− 0. 243	0.001*	0.163	0.118	− 0.176	0.096	− 0.222	0.034

DD disk degeneration, CEF cartilaginous endplate, LF ligamentum flavum, ROM range of motion
*P < 0.05

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