Table 3. Sensitivity analysis of hazard ratio for ARID1A expression loss and overall survival in gastric cancer.

Study Omitted	HR (95% CI)	P	I2	PH:
Abe (2012)	1.56 (1.37, 1.78)	<0.001	16.8%	0.270
Wang (2012)	1.59 (1.39, 1.82)	<0.001	27.0%	0.164
Wu (2012)	1.57 (1.37, 1.79)	<0.001	23.6%	0.199
Li (2014)	1.59 (1.39, 1.81)	<0.001	25.3%	0.181
Wiegand (Toronto) (2014)	1.57 (1.38, 1.79)	<0.001	0.0%	0.500
Wiegand (Vancouver) (2014)	1.64 (1.44, 1.87)	<0.001	13.3%	0.307
Yan (2014)	1.58 (1.39, 1.80)	<0.001	24.8%	0.186
Dou (2015)	1.60 (1.40, 1.83)	<0.001	27.1%	0.164
Han (2015)	1.61 (1.41, 1.83)	<0.001	26.7%	0.167
Ibarrola-Villava (2015)	1.63 (1.43, 1.86)	<0.001	4.1%	0.406
Inada (2015)	1.65 (1.44, 1.91)	<0.001	21.2%	0.224
Kim (2015)	1.61 (1.41, 1.83)	<0.001	26.5%	0.170
Lee (2015)	1.59 (1.40, 1.81)	<0.001	25.5%	0.179
Kim (2016)	1.59 (1.39, 1.82)	<0.001	26.9%	0.166
Zhao (2016)	1.59 (1.39, 1.82)	<0.001	26.9%	0.166

HR: hazard ratio; CI: confidence interval; P_H:: the P value of Cochran Q-test for heterogeneity.