In patients with usual interstitial pneumonia, the presence of desaturation was associated with an increased hazard of death (hazard ratio, 4.2; 95% confidence interval, 1.40, 12.56; p = 0.01) after adjusting for age, sex, smoking, baseline diffusion capacity for carbon monoxide, FVC, and resting saturation.

Do all patients with COVID-19 get pneumonia?

Most people who get COVID-19 have mild or moderate symptoms like coughing, a fever, and shortness of breath. But some who catch the new coronavirus get severe pneumonia in both lungs. COVID-19 pneumonia is a serious illness that can be deadly.

What are symptoms of COVID-19 affecting the lungs?

Some people may feel short of breath. People with chronic heart, lung, and blood diseases may be at risk of severe COVID-19 symptoms, including pneumonia, acute respiratory distress, and acute respiratory failure.