Table 1.

Characteristics of the included studies.

Authors	Year	Country	Cancer type	Total number	H19 expression		Cut-off (high/low)	Detection method	Quality score
					High	Low
Zhang et al. [11]	2014	China	GC	80	40	40	Mean	RT-qPCR	7
Huang et al. [12]	2015	China	EC	133	66	67	Median	RT-qPCR	8
Chen et al. [13]	2016	China	GC	128	64	64	Median	RT-qPCR	8
Wang et al. [14]	2016	China	GBC	24	13	11	Median	RT-qPCR	6
You et al. [15]	2014	China	GC	30	15	15	Median	RT-qPCR	6
Han et al. [16]	2016	China	CRC	83	48	35	Fold change	RT-qPCR	7

GC: gastric cancer; EC: esophageal cancer; GBC: gallbladder cancer; CRC: colorectal cancer; RT-qPCR: real-time quantitative PCR.