Short-Term Readmission Following Community-Acquired Pneumonia: A Cross-Sectional Study

Background:Community-acquired pneumonia continues to be a major cause of morbidity and mortality. Hospital readmissions following community-acquired pneumonia are linked to significant cost of care and medical burdens. This study aimed to determine the incidence and reasons for readmission as well as to assess factors associated with short-term hospital readmission among community-acquired pneumonia patients. Methods:A retrospective, cross-sectional study was conducted on 582 medical records of community-acquired pneumonia inpatients from December 2018 to December 2019 at an 800-bed tertiary hospital in Ho Chi Minh City, Vietnam. We collected data on patient characteristics, pneumonia severity at hospital admission, microbiology and antibiotic resistance, appropriateness of empiric antibiotic therapies, and the readmissions information. Multivariable logistic regression analyses were performed to identify factors associated with 30-day hospital readmission. Results: Of the 582 hospitalized community-acquired pneumonia patients, 11.9% were readmitted to the hospital within 30 days. About half of the cases (43.5%) were due to pneumonia. Multidrug-resistant bacteria accounted for 43.2% of the pathogen isolates. A high Charlson comorbidity index (aOR, 1.40; CI 95%, 1.08-1.82) and multidrug-resistant infection (aOR, 2.63; CI 95%, 1.05-6.56) were associated with higher odds of all-cause readmission. Conclusions:Hospital readmissions within 30 days occurred frequently among community-acquired pneumonia inpatients, and the most common reason for readmission recorded was pneumonia-related. Monitoring closely patients with multimorbidity or multidrug-resistant infections may improve treatment outcomes.