Table 6.

Sensitivity test for meta-analysis of overall complication rate of semi-elective surgery after SEMS installation versus emergency surgery.

Excluded study	RR (95% CI) after exclusion	Heterogeneity test
		P value	I ² (%)
Alcántara et al. 2011 [1]	0.625 (0.283, 1.383)	0.009	84.667
Cheung et al. 2009 [2]	0.817 (0.534, 1.249)	0.099	47.298
Ho et al. 2012 [3]	0.495 (0.178, 1.379)	0.003	88.043
Pirlet et al. 2011 [4]	0.446 (0.166, 1.198)	0.002	81.895
van Hooft et al. 2011 [5]	0.424 (0.181, 0.995)	0.022	73.792