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

Table 3

The protein expression of ANGPTL4 in NP tissues of different IVDD grades.

Pfirrmann grades	II	III	IV	V
	2	25	46	8
ANGPTL4 protein expression ()					0.365

: sample size; : correlation coefficient; SD: standard deviation. .