Prognostic significance of malignant ascites in gastric cancer patients with peritoneal metastasis: A systemic review and meta-analysis

Table 4 Quality of included studies

Ref.	Selection of subjects (score)	Intergroup comparability (score)	Result measurement (score)	NOS
Sadeghi et al[16]	4	1	3	8
Chen et al[27]	3	1	3	7
Glehen et al[25]	4	1	3	8
Lan et al[21]	3	1	3	7
Kitayama et al[22]	4	1	3	8
Peng et al[17]	3	1	3	7
Shitara et al[15]	3	1	3	7
Nie et al[19]	3	1	3	7
Ohnuma et al[18]	3	1	3	7
Matsumoto et al[20]	3	1	3	7
Hara et al[24]	3	1	3	7
Ji et al[23]	3	1	3	7
Iwasa et al[4]	3	1	3	7
Emoto et al[26]	3	1	3	7

NOS: The Newcastle-Ottawa Scale.