Fig. 3

Forest plots of studies on the association between GGO volume and EGFR mutation. a Mixed GGO (part-solid GGO) was EGFR mutated much more commonly than pure GGO (non-solid GGO). b–c No association was found between pure or mixed GGO or solid tumor of NSCLC and EGFR mutation. d No association was found between GGO with percentages (pGGO) less than or greater than 50% of NSCLC and EGFR mutation