Characteristics of included studies for indirect meta-analysis.

aExon of EGFR mutation means either exon 19 deletion or exon 21 L858R mutation. Abbreviations: AUC = area under the concentration time curve; Chemo = chemotherapy; CI = confidence interval; EGFR = epidermal growth factor receptor; HR = Hazard ratio; PFS = progression-free survival; TKI = tyrosine kinase inhibitor. Characteristics of included studies for indirect meta-analysis.表皮生长因子受体（epidermal growth factor receptor, EGFR）的外显子突变特指19号外显子缺失突变或21号外显子L858R点突变。 缩写说明：AUC = 浓度-时间曲线下面积（area under the concentration time curve）；Chemo = 化疗（chemotherapy）；CI = 置信区间（confidence interval）；EGFR = 表皮生长因子受体（epidermal growth factor receptor）；HR = 风险比（Hazard ratio）；PFS = 无进展生存期（progression-free survival）；TKI = 酪氨酸激酶抑制剂（tyrosine kinase inhibitor）。 间接Meta分析纳入研究的特征。