PD-L1 over-expression and survival in patients with non-small cell lung cancer: a meta-analysis

被引:74
作者
Zhou, Ze-Jun [1 ]
Zhan, Ping [1 ]
Song, Yong [1 ]
机构
[1] Nanjing Univ, Jinling Hosp, Sch Med, Dept Resp Med, 305 East Zhongshan Rd, Nanjing 210002, Jiangsu, Peoples R China
关键词
Programmed cell death-ligand 1 (PD-L1); prognosis; lung cancer; meta-analysis;
D O I
10.3978/j.issn.2218-6751.2015.03.02
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background: Observational studies on the prognostic role of programmed cell death-ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC) are controversial. Methods: To clarify the impact of PD-L1 in NSCLC survival, we performed this meta-analysis that included eligible studies. The combined hazard ratios (HR) and their corresponding 95% confidence intervals (CIs) were calculated in terms of overall survival. Results: A total of five studies with 877 patients were evaluable for this meta-analysis. Our results suggested that PD-L1 overexpression had a poor impact on survival of patients with NSCLC, the HR (95% CI) was 1.43 (1.24-1.63) overall, 1.51 (1.24-1.7954) in Asian patients, 1.35 (1.08-1.63) in non-Asian patients. Moreover, there was no heterogeneity between the studies. Conclusions: PD-L1 overexpression indicates a poor prognosis for patients with NSCLC.
引用
收藏
页码:203 / 208
页数:6
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