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

Table 4

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

	Pfirrmann grading					χ^2
	Level I	Level II	Level III	Level IV	Level V
Complete	82	45	15	1	2	35.02	0.000
Partial disappearance	15	51	76	98	76
Complete obliteration	3	4	8	1	22