Lymphovascular invasion in rectal cancer following neoadjuvant radiotherapy: A retrospective cohort study

Table 2 The relevance of LVI and pathologic factors

		LVI		Positive rate (%)	P value
		Present	Absent
PRT
ypT	T1	1	5	16.7	0.592
	T2	6	31	16.2
	T3	14	44	24.1
	T4	1	1	50.0
ypN	N0	9	54	14.3	0.057
	N1	9	15	37.5
	N2	4	12	25.0
Histological differentiation	High	1	3	25.0	0.998
	Moderate	15	55	21.4
	Poor	5	19	20.8
	Mucinous and signet	1	4	21.0
Downstaging	Yes	7	34	17.1	0.388
	No	15	47	24.2
Control
pT	T1	0	11	0	< 0.01
	T2	8	50	13.8
	T3	49	98	33.3
	T4	1	5	16.7
pN	N0	15	103	12.7	< 0.01
	N1	15	37	28.8
	N2	28	24	53.8
Histological differentiation	High	7	22	24.1	0.015
	Moderate	34	122	21.8
	Poor	11	16	40.7
	Mucinous and signet	6	4	60.0