EGFR and sarcopenia: Univariate and multivariate Cox regression analyses of both the EGFR-TKI and ICI cohorts confirmed that sarcopenia was an independent negative factor for PFS (EGFR-TKI cohort, HR: 2.946, 95% CI: 1.430–6.068, p = 0.003, Supplementary Table 5; ICI cohort, HR: 3.567, 95% CI: 1.647–7.724, p = 0.001, Supplementary Table 6).