Fig. 3

Violin plots for the three CT patterns and duration of intubation. The line represents 95% CI, the box represents the interquartile range, and the point is representative of the median. Density plot width indicates the frequency. There was a significant difference between the three CT patterns and duration of intubation (Kruskal–Wallis test, p < 0.0001). On the Mann–Whitney U test, there were significant differences between the peripheral and diffuse patterns and between the multifocal and diffuse patterns (p = 0.003 and p = 0.001, respectively). CT, computed tomography