Risk Factors of Capelastegui et al for 30-Day Readmission for a Hospitalized Patient with Community-Acquired Pneumonia (CAP)

Patient selection: patient admitted to the hospital for community-acquired pneumonia (CAP)

Outcome: 30-day readmission

Risk factors for a pneumonia-related readmission:

(1) treatment failure (hazard ratio 2.9)

(2) >= 1 instability factors on discharge (hazard ratio 2.8)

Treatment failure:

(1) hemodynamic instability

(2) respiratory failure

(3) need for mechanical ventilation

(4) progression of the pneumonia on imaging studies

(5) appearance of a new infectious foci

Factors considered unstable at discharge:

(1) temperature >= 37.2°C

(2) heart rate >= 120 beats per minute

(3) respiratory rate >= 24 breaths per minute

(4) systolic blood pressure <= 90 mm Hg

(5) receiving supplemental oxygen by face mask or nasal prongs

(6) unable to eat or resume long-term tube feedings

Risk factors for a readmission unrelated to pneumonia:

(1) age >= 65 years (hazard ratio 4.5)

(2) Charlson comorbidity index >= 2 (hazard ratio 1.9)

(3) in-hospital decompensation of comorbid condition(s) (hazard ratio 3.5)