Role of self-expanding metal stents in patients with malignant colorectal obstruction: A systematic review and meta-analysis

Table 2 Efficacy of self-expandable metal stent placement

Category and subgroups		Studies	Event rate (%)	95%CI	P value	I2 value
Technical success		30	94.0	91.8-95.6	0.000	58.07
Indication	Palliation	10	94.2	91.3-96.1	0.580	0.00
	BTS	8	89.4	79.5-94.8	0.003	67.14
Center	Single Center	24	94.1	92.1-95.6	0.06	32.74
	Multicenter	6	93.3	83.1-97.5	0.000	84.70
Design	Prospective	11	93.1	86.9-96.5	0.000	80.94
	Retrospective	18	94.4	92.7-95.7	0.846	0.00
Region	Asia	12	95.2	91.0-97.5	0.005	58.82
	Europe	13	92.8	89-95.4	0.001	65.40
	North America	3	96.0	93.2-97.6	0.679	0.00
Clinical success		29	90.6	88.1-92.7	0.001	50.58
Indication	Palliation	10	91.7	88.7-94	0.719	0.00
	BTS	8	87.9	78.1-93.7	0.004	66.35
Center	Single Center	23	90.8	88.4-92.7	0.042	36.52
	Multicenter	5	89.7	76.7-95.9	0.004	73.93
Design	Prospective	10	89.7	82.6-94.0	0.001	72.48
	Retrospective	18	91.0	88.7-92.3	0.238	18.04
Region	Asia	12	91.2	87.2-94.1	0.044	45.37
	Europe	12	89.1	84.5-92.3	0.029	48.73
	North America	3	92.5	83.9-96.7	0.040	69.03

BTS: Bridge to surgery.