Fig. 6

Correlation of protein abundance with BALF neutrophil counts. Scatter plots showing the correlation between neutrophil percentage and log₂ transformed LFQ intensities for the ten proteins with the highest absolute positive Spearman correlation coefficients. The proteins are arranged by protein group and decreasing correlations (ρ), with eight neutrophil-associated (upper panels) and two mucus-modifying proteins (MUC4, FCGBP, lower panel). Each dot represents the mean log₂ LFQ intensity obtained from three technical replicates per BALF sample. Green = healthy, red = SEA yellow = MEA. The number next to each dot indicates the corresponding BALF sample ID (Supplementary Table 1). Spearman ρ and p-values are indicated in each plot.