CT signs and pejorative evolution
Associations between COVID-19 typical CT signs and intensive care unit hospitalization, use of invasive endotracheal ventilation and death are summarized in Table 3, with the calculated p-values, only for the 109 RT-PCR positive patients.
Bronchial distortion was significatively associated with mortality (p = 0,018), ICUH and invasive endotracheal ventilation (p < 10-3). Vascular dilatation and a number of involved lobes ≥ 4 were significatively associated with invasive endotracheal ventilation and ICU hospitalization (p < 10-3). Total lung volume involvement ≥ 50 % was also significatively associated with death, invasive endotracheal ventilation and ICUH (p < 10-3). Air bubble sign (p = 0,039), interlobular (p = 0,026) and peribronchovascular thickening (p = 6.10-3) were associated with invasive endotracheal ventilation.