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Table 2 Multivariable analysis for independent factors on overall survival

From: Supraclavicular lymph node incisional biopsies have no influence on the prognosis of advanced non-small cell lung cancer patients: a retrospective study

Variable HR (95% CI) P value
ECOG PS (≥2 vs. <2) 2.75 (1.71–4.38) P < 0.001
EGFR (mutation vs. wild type) 0.58 (0.40–0.84) P = 0.004
Systemic treatment (yes vs. no) 0.36 (0.25–0.53) P = 0.001