Fig 1. Diversity of stent biofilm bacterial communities by underlying disease and stent material.

Biofilm communities were grouped by underlying pulmonary diagnosis (A) and stent material (B), and within-sample bacterial diversity was calculated using the Shannon Index. Each dot represents a sample, the boxplot represents the median, 75th and 25th percentiles, and points outside the whiskers are outliers. Subjects with underlying suppurative lung disease (cystic fibrosis (CF) and non-CF bronchiectasis) had lower alpha diversity compared to COPD and ILD (p < 0.05, pairwise comparison Wilcoxon rank sum test). Stent material did not impact alpha diversity.