Expression of ANGPTL4 in Nucleus Pulposus Tissues Is Associated with Intervertebral Disc Degeneration

Table 1

Clinical information of IVDD patients with different Pfirrmann grades.

Pfirrmann grades		Gender (male/female)	Age ()
II	4	2/2
III	66	46/60
IV	84	48/36
V	8	4/4
		0.118	0.162
		0.136	0.047

The correlation between age and IVDD grades was analyzed through Spearman’s rank correlation. : sample size; : correlation coefficient; SD: standard deviation. .