Figure 3.

Arterial oxygen tension/fractional inspired oxygen (Pa O2/FiO2) ratio (kPa) shown as box plot with median values and interquartile range in the two groups of patients with acute respiratory failure (ARF) alone and ARF with other organ failure during their hospital stay (from days 1–10).

Flaatten et al. Critical Care 2003 7:R72   doi:10.1186/cc2331