Risk factors for postextubation pneumonia using diagnosis procedure combination and claims data in Japan.

We reviewed all patients who underwent elective surgery under general anesthesia between April 2016 and March 2023.

Ventilator-associated pneumonia (ventilator-associated pneumonia) cases were identified according to standard definitions.

Risk factors for postextubation pneumonia included advanced age, male sex, low BMI, impaired consciousness, and reduced activities of daily living.

Smoking status was not significantly associated with postextubation pneumonia.