Deep Learning-Based Magnetic Resonance-Ultrashort Time of Echo Imaging for Analyzing Degeneration of Intervertebral Disc Cartilage Endplate and Rehabilitation Nursing

Table 3

The integrity of cartilage endplate and Pfirrmann grading distribution of intervertebral disc degeneration in the lumbago group.

	Pfirrmann grading					χ^2
	Level I	Level II	Level III	Level IV	Level V
Complete	75	65	18	15	2	169.32	0.000
Partial disappearance	21	32	78	81	62
Complete obliteration	4	3	4	4	36