Circulating and alveolar hyaluronic acid (HA) levels are positively correlated within 48 hours of diagnosis (A) of acute respiratory distress syndrome (ARDS) but not at days 4 ± 1 (B) or 8 ± 1 (C). This figure provides the reader with graphical representation and corresponding statistical analysis of the correlation between HA levels at various sample collection times during the study. As discussed in the text, there is weak correlation at day 0 and no correlation at days 4 and 8, which, per our hypothesis, supports independent compartmentalized effects or processing of HA. (DOCX 262 kb
