The supplemental materials for the article "Outdoor Particulate Matter Exposure and Lung Cancer: A Systematic Review and Meta-Analysis" include Figure S1, which presents funnel plots for studies examining the association between lung cancer incidence and mortality and exposure to PM2.5 (top) and PM10 (bottom). The center lines in these plots represent a fixed-effect meta-estimate, not a random-effect estimate, and do not align with the estimates in Table 2 of the manuscript. Additionally, Jerrett et al. (2013) is excluded from the PM2.5 funnel plot. Table S1 provides influence analyses that assess the impact of a 10 μg/m³ change in exposure to PM2.5 and PM10 on lung cancer incidence and mortality.The supplemental materials for the article "Outdoor Particulate Matter Exposure and Lung Cancer: A Systematic Review and Meta-Analysis" include Figure S1, which presents funnel plots for studies examining the association between lung cancer incidence and mortality and exposure to PM2.5 (top) and PM10 (bottom). The center lines in these plots represent a fixed-effect meta-estimate, not a random-effect estimate, and do not align with the estimates in Table 2 of the manuscript. Additionally, Jerrett et al. (2013) is excluded from the PM2.5 funnel plot. Table S1 provides influence analyses that assess the impact of a 10 μg/m³ change in exposure to PM2.5 and PM10 on lung cancer incidence and mortality.