Table 2.

Overall survival (months)

Study	All patients		p-Value	N1 patients		p-Value
PALN−	PALN+	PALN−	PALN+
Doi7	12.4 (1.175)	5.1 (1.325)	<0.001
Kayahara8				12	8.4	0.050
Choi11				31 (3.55)	17 (2.2)	0.008
Kanda12				11.5	8.3	0.006
Sakai14				9	8.1	0.117
Schwarz20	27.2	15.7	0.050	21	15.1	0.110
Shimada15	30	13	<0.001
Yamada17				11	8	0.002
Yoshida18	24.8	8	0.003
Sho16	22.6	16.9	<0.001
Paiella13				30	17	<0.001

Numbers express mean values (SD) in months, (SD) where it could be extracted.