Table 1. Characteristics of studies included in the meta-analysis.

Study	Year	Country	Cancer type	Detection method	Sample size	LncRNA FTX expression														Survival information	NOS score
						High							Low
						Total	LNM	DM	HS	LD	Larger TS	M	Total	LNM	DM	HS	LD	Larger TS	M
Zhao et al. [9]	2020	China	CRC	RT-qPCR	30	15	9	11	10	NA	10	9	15	6	7	7	NA	6	7	NA	8
He et al. [12]	2017	China	RCC	RT-qPCR	150	82	63	NA	65	NA	76	42	68	30	NA	34	NA	48	37	NA	8
Liu et al. [13]	2016	China	HCC	RT-qPCR	129	64	NA	NA	16	43	45	51	65	NA	NA	16	56	57	60	OS/RFS	7
Li et al. [10]	2018	China	OSC	RT-qPCR	84	39	NA	17	23	NA	25	22	45	NA	9	14	NA	22	27	OS	9
Zhang et al. [11]	2020	China	GC	RT-qPCR	71	32	25	NA	26	19	17	17	39	21	NA	18	11	18	22	OS	7
Liang et al. [17]	2020	China	glioma	RT-qPCR	187	95	NA	NA	50	NA	NA	40	92	NA	NA	26	NA	NA	49	OS/PFS	7
Guo et al. [16]	2015	China	CRC	RT-qPCR	187	75	46	NA	44	38	NA	14	112	71	NA	60	51	NA	31	OS	6
Jiang et al. [18]	2019	China	GC	RT-qPCR	93	48	34	15	36	27	35	31	45	26	4	23	6	14	29	NA	9
Li et al. [14]	2019	China	HCC	RT-qPCR	73	37	18	18	NA	2	23	27	36	6	6	NA	12	21	20	OS/DFS	6
Yang et al. [20]	2018	China	CRC	RT-qPCR	80	40	27	25	26	12	26	27	40	15	12	17	14	17	26	OS	8
Liu et al. [21]	2016	China	HCC	RT-qPCR	126	65	NA	NA	18	32	28	50	61	NA	NA	8	12	10	49	OS/DFS	7

Abbreviations: CRC, colorectal cancer; DFS, disease-free survival; DM, distant metastasis; GC, gastric cancer; HCC, hepatocellular carcinoma; HS, high TNM/clinical stage (III/IV); Larger TS, the larger tumor size group (diameter ≥3 cm); LD, low differentiation; LNM, lymph node metastasis; M, man; OS, overall survival; NA, not available; NOS, Newcastle–Ottawa scale; OSC, osteosarcoma; PFS, progression-free survival; RCC, renal cell carcinoma; RFS, recurrence-free survival; RT-qPCR, reverse transcription quantitative real-time polymerase chain reaction.