Figures & data
Figure 1. A flowchart of literature screening method
Table 1. The characteristics of included studies
Table 2. The reported metastatic sites of advanced NSCLC in different studies
Figure 2. Forest plot of the impact of different metastatic sites on overall survival following PD-1 therapy
Figure 3. Forest plot of the impact of different metastatic sites on progression-free survival following PD-1 therapy
Figure 4. Forest plot of the impact of the number of metastatic sites on survival outcome following PD-1 therapy
