Figures & data
Notes: There was no significant difference in pneumonia severity grades (p = 0.427, chi-square test) between the early and late phases.
Abbreviations: CAP, community-acquired pneumonia; HAP, hospital-acquired pneumonia; NHCAP, nursing and healthcare-associated pneumonia.
Notes: Pneumonia of moderate severity was most common in both early and late phases, with moderate and severe cases accounting for nearly 90% of the total (early phase, 86.8%; late phase, 88.3%). Patients with extremely severe pneumonia comprised 9.8% of cases in the early phase and 9.3% in the late phase.