Table 1. Basic information of included studies.

Study ID	LncRNA	Country	Dominant ethnicity	Sample	Reference	Detection method	Sample size	Outcome	Source of HR	Cut off value
Lingmin Liao 2014	XLOC_010588	China	Asian	tissue	GAPDH	qRT-PCR	218	OS/DFS	Reported&SC	median
Long Huang 2014	HOTAIR	China	Asian	tissue	GAPDH	qRT-PCR	218	OS/DFS	Reported&SC	median
Jing Li 2014	HOTAIR	China	Asian	tissue	GAPDH	qRT-PCR	118	OS/RFS	SC	median
Shihong Cao 2014	GAS5	China	Asian	tissue	RNU6B	qRT-PCR	102	OS	Reported	0.29
L. Yang 2015	MALAT1	China	Asian	tissue	GAPDH	qRT-PCR	104	OS/RFS	Reported&SC	3.075
Meng Yang 2015	CCHE1	China	Asian	tissue	RPS18	qRT-PCR	182	OS/RFS	SC	median
Reiko Kobayashi 2015	XIST	Japan	Asian	tissue	GAPDH	qRT-PCR	49	OS	Reported	median
Hee Jung Kim 2015	HOTAIR	Korea	Asian	tissue	U6	qRT-PCR	111	OS	Reported	30-fold
Shan Jiang 2015	LET	China	Asian	tissue	GAPDH	qRT-PCR	94	OS	Reported	mean
Y.F. Wang 2016	HULC	China	Asian	tissue	GAPDH	qRT-PCR	244	OS	Reported	median
Shaorong Zhang 2016	PVT1	China	Asian	tissue	GAPDH	qRT-PCR	90	OS	SC	median
Marissa Iden 2016	PVT1	America	Caucasian	tissue	RPS18	qRT-PCR	121	OS	SC	median
Hee Jung Kim 2016	HOXA11	Korea	Asian	tissue	U6	qRT-PCR	92	OS	Reported	227.5-fold
Jun Zhang 2017	MEG3	China	Asian	tissue	β-actin	qRT-PCR	72	OS/RFS	Reported&SC	median
Dongli Zhang 2017	ANRIL	China	Asian	tissue	GAPDH	qRT-PCR	53	OS	Reported	median