Table 1.

Factors associated with perineural, lymphatic, and venous infiltration.

	Pn1	Pn0	p	L1	L0	p	V+	V0	p
	n = 41	n = 109		n = 21	n = 129		n = 27	n = 113
T-status			0.128			0.046			0.253
T1 + T2	27	85		12	100		25	87
T3 + T4	14	24		9	29		12	26
N-status *			0.019			0.010			0.121
N0	20	70		8	82		20	70
N1	18	25		11	32		15	28
M-status			0.723			0.085			0.861
M0	39	101		18	123		35	106
M1	2	7		3	6		2	7
Pn-status			-			<0.001			<0.001
Pn0	-	-		9	100		17	92
Pn1	-	-		12	29		20	21
L-status			<0.001			-			<0.001
L0	29	100		-	-		22	92
L1	12	9		-	-		13	6
V-status			<0.001			<0.001			-
V0	21	92		6	92		-	-
V1 + V2	20	17		13	22		-	-
Grading			0.162			0.124			0.212
G1 + G2	22	72		10	84		20	74
G3 + G4	19	37		11	45		17	39
R-status			0.320			0.641			0.696
R0	34	97		19	112		33	98
R1	7	12		2	17		4	15
Multifocality			0.820			0.191			0.788
Yes	12	34		9	37		12	34
solitary	29	75		12	92		25	79
≥major resection			0.004			0.504			0.012
Yes	36	69		16	89		32	73
No	5	40		5	40		5	40
Extended resection			0.410			0.299			0.174
Yes	26	61		10	77		25	62
No	15	48		11	52		12	51
Visceral infiltration			0.015			0.406			0.250
Yes	10	10		4	16		7	13
No	31	99		17	113		30	100

Significant p-values in bold; * 17 patients with Nx were excluded from this analysis.