Fig. 3From: Lipid biomarkers that reflect postoperative recurrence risk in lung cancer patients who smoke: a case–control studyCorrelation analysis between the screened lipid peaks and Brinkman index (BI). Two lipid peaks in the ADC cohort showed significant correlations with BI (a), while 12 lipid peaks showed significance in the SQCC cohort (b) (indicated as yellow highlighted m/z). A significant correlation was defined as Pearson correlation coefficient ≥ 0.5 ∩ P-value < 0.05 (shown as yellow asterisks). Abbreviations: ADC, Adenocarcinoma; BI, Brinkman index; m/z, Mass-to-charge ratio; SQCC, Squamous cell carcinomaBack to article page