Clinical significance of palliative gastrectomy on the survival of patients with incurable advanced gastric cancer: a systematic review and meta-analysis

Table 1 Quality assessment of trials included in the present study (STROBE)

Author	Treatment	A	B	C	D	E	F	G	H	I
Kikuchi S [26]	Palliative gastrectomy/other procedures	P	Y	N	Y	Y	Y	Y	N	Y
Saidi RF [27]	Palliative gastrectomy/no surgery	Y	Y	P	P	Y	N	Y	N	P
Nazli O [28]	Palliative gastrectomy/no surgery	P	Y	N	N	Y	N	Y	N	N
Lin SZ [29]	Palliative gastrectomy/unresectable operation/no surgery	Y	Y	N	P	Y	N	Y	N	N
Lupascu C [30]	Palliative gastrectomy/no surgery	Y	P	N	N	Y	N	Y	Y	P
Zhang JZ [31]	Palliative gastrectomy/no surgery	Y	P	N	Y	Y	N	Y	N	Y
Sougioultzis S [32]	Palliative gastrectomy/no surgery	Y	Y	N	Y	Y	N	Y	N	P
Kim KH [33]	Palliative gastrectomy/no surgery	Y	Y	N	Y	Y	Y	Y	N	Y
Chang YR [34]	Palliative gastrectomy/no surgery	Y	Y	N	Y	Y	Y	Y	N	Y
Kokkola A [35]	Palliative gastrectomy/exploration	Y	P	N	P	Y	P	Y	N	Y
Chen S [36]	Palliative gastrectomy/no surgery	P	Y	N	N	Y	N	Y	N	P
Tokunaga M [37]	Palliative gastrectomy/no surgery	Y	Y	P	Y	Y	N	Y	N	Y
Miki Y [38]	Palliative gastrectomy/no surgery	P	Y	N	Y	Y	N	Y	N	Y
Dittmar Y [39]	Palliative gastrectomy/unresectable operation/other procedures/no surgery	Y	Y	P	Y	Y	N	Y	N	N

A, Objectives and prespecified hypothesis in the introduction; B, Eligibility criteria of cohort in methods; C, Methods for recruitment of participant; D, Mention of outcomes, exposure, and confounder; E, Study size calculated; F, Potential biases addressed; G, Statistical methods described; H, Mention of how missing data was handled; I, Limitation of the study and the generalizations mentioned; Y, Yes; N, No; P, Partially.

ISSN: 1471-2407