Obesity paradox in patients with community-acquired pneumonia: Have you fully considered the confounding factors?

There exists a notion that there is an obesity paradox in the prognosis of community-acquired pneumonia. In other words, obese individuals with community-acquired pneumonia have a better prognosis. The study by Wang <i>et al</i> supports this claim, but we believe that the obesity paradox should not be proposed hastily as it is influenced by numerous subjective and objective confounding factors.