Table 2.

Trial and patient characteristics

Study	Disease stage	Follow-up months	Trial randomization	Lost to follow-up	Survival analysis
Kim et al[23]	Advanced gastric cancer, chemotherapy-naive	0.5-39.2	Yes	Recorded	ITT
Lee et al[22]	Elderly patients (aged ≥ 65 yr) Advanced gastric cancer	Capecitabine: 21.9; S-1: 21.7	Yes	Recorded	ITT
Zhang et al[21]	Gastric cancer after surgery	24	Yes	Recorded	Evaluable
Xiong et al[20]	Advanced gastric cancer, chemotherapy-naive	2-28	Yes	Recorded	ITT