Table 3.

Relationship of clinical and MRI features to pN0 patient survival rates

	No.	OS rate	P	MFS rate	P	LRFS rate	p
Age
18–60	196	87.8	0.61	92.5	0.76	98.6	0.81
≥ 61	219	88.7		91.0		98.5
Sex
Male	254	86.1	0.25	91.9	0.66	98.4	0.83
Female	161	91.0		91.2		97.9
MR-LLN status
No visible	311	90.9	< 0.01	93.8	< 0.01	98.9	0.10
Visible	104	79.4		85.2		97.1
MR-T stage
T1	94	90.9	< 0.01	96.8	0.07	98.9	0.86
T2	115	92.8		92.2		98.0
T3a + b	206	86.4		90.1		98.0
Postoperative therapy
No	308	97.4	0.44	95.1	< 0.01	97.9	0.48
Yes	107	89.0		81.7		99.1
Postoperative therapy in MR-LLN +
No	30	64.3	0.02	68.1	< 0.01	96.6	0.86
Yes	74	85.9		91.7		97.3
SA of LLN
< 8 mm	92	85.4	< 0.01	88.8	< 0.01	97.8	0.27
≥ 8 mm	12	35.9		58.3		92.3

LLN lateral lymph node, SA short axis