Re-evaluation of classical prognostic factors in resectable ductal adenocarcinoma of the pancreas

Table 3 Para-aortic lymph node involvement and survival

Ref.	Year	n	Detection rate (%)	Median OS with PALN (mo)	Survival model	HR (95%CI)	P value
Sho et al[62]	2015	882	102 (12)	17	Multivariable	1.15 (0.87-1.50)	0.335
Schwarz et al[24]	2014	111	17 (15)	16	Univariable	NR	0.038
Kanda et al[63]	2011	429	49 (11)	8	Univariable	NR	0.006
Murakami et al[64]	2010	103	18 (17)	12	Multivariable	1.84 (0.28-1.07)	0.078
Doi et al[51]	2007	133	19 (14)	5	Multivariable	2.90 (1.60-5.02)	0.001
Shimada et al[65]	2006	133	29 (22)	13	Univariable	NR	< 0.001

OS: Overall survival; PALN: Para-aortic lymph node involvement.