Prognostic efficacy of lymph node parameters in resected ampullary adenocarcinoma based on long-term follow-up data after adjuvant treatment

Table 2 Prognostic significance of various parameters related to lymph node status on each survival outcome

		N (%)	5-yr OS (%)	P-value^a	5-yr DFS (%)	P-value^a	5-yr LRFS (%)	P-value^a	5-yr DMFS (%)	P-value^a
LNN	0–1	68 (79.1)	67.6	0.001	62.8	< 0.001	89.7	0.18	76.8	< 0.001
LNN	≥ 2	18 (20.9)	22.2		22.2		100		26.7
LNR	≤ 4.8%	53 (61.6)	71.7	0.001	67.4	< 0.001	90.6	0.616	80.9	0.001^b
LNR	> 4.8%	33 (38.4)	36.4		33.3		93.6		42.4
LODDS	≤ -0.92	56 (65.1)	67.9	0.01	61.8	0.022	91.1	0.744	74.2	0.042
LODDS	> -0.92	30 (34.9)	40		40		93		51.2
pN stage	0	44 (51.2)	75	0.003	70	< 0.001	88.6	0.226	70	< 0.001
	1	33 (38.4)	45.5		42.4		93.8		44.3
	2	9 (10.5)	22.2		22.2		100		22.2
LN involvement	Absent	44 (51.2)	75	0.004	70	0.003	88.6	0.285	84	0.004
LN involvement	Present	42 (48.8)	40.5		38.1		95.1		47.5

OS overall survival, DFS disease-free survival, LRFS locoregional recurrence-free survival, DMFS distant metastasis-free survival, LN lymph node, LNN metastatic lymph node number, LNR metastatic lymph node ratio, LODDS log odds of positive lymph node
^ap-Value by log-rank test
^bActual p-Value is 0.001460516

ISSN: 1477-7819