Table 2. Meta-analysis results of the associations of lncRNA-H19 with OS according to subgroup analysis.

Categories	Studies (n)	Number of patients	Fixed-effects model		Heterogeneity
			HR (95% CI) for OS	p-value	I2 (%)	Ph
[1] OS	10	1234	1.08(1.05-1.12)	< 0.001	38.6	0.101
[2] Cancer type
1) Digestive system cancers	6	966	1.07(1.01-1.13)	< 0.001	52.9	0.060
Others	4	268	1.09(1.05-13)	< 0.001	22.4	0.276
2) Gastric cancer	4	643	1.15(1.01-1.28)	< 0.001	0.0	0.756
Others	6	591	1.08(1.04-1.11)	< 0.001	60.3	0.027
[3] Analysis type
Multivariate	5	453	1.10(1.06-1.14)	< 0.001	62.9	0.029
Non-multivariate	5	781	1.03(0.96-1.10)	< 0.001	0.0	0.883
[4] Sample size
≥ 100	3	729	1.03(0.96-1.10)	< 0.001	0.0	0.449
< 100	7	505	1.10(1.06-1.14)	< 0.001	41.5	0.115