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Published on: June 10, 2025
Factors predicting readmission in patients with COVID-19
Mohammad Nematshahi1, Davood Soroosh2, Mahboubeh Neamatshahi3
1Department of Anesthesiology, School of Medicine, Sabzevar University of Medical Science, Sabzevar, Iran.
Insights
The readmission rate for discharged COVID-19 patients was 8.1% within 60 days. Key risk factors for readmission include lung involvement, age over 60, diabetes, and elevated creatinine levels.
Area of Science:
- Infectious Diseases
- Public Health
- Pulmonology
Background:
- Coronavirus disease 2019 (COVID-19) was declared a global health emergency by the WHO.
- A significant percentage of COVID-19 survivors experience readmission within two months post-discharge.
- Understanding readmission rates and risk factors is crucial for managing post-COVID-19 patient care.
Purpose of the Study:
- To determine the readmission rate among patients discharged after COVID-19 infection.
- To identify significant risk factors associated with hospital readmission in COVID-19 survivors.
Main Methods:
- A prospective study involving 416 discharged COVID-19 patients with a minimum one-month follow-up.
- Data collected included readmission timing, patient demographics (age, sex), presenting symptoms, CT scan results, PCR test outcomes, and treatment modalities.
- Statistical analysis focused on identifying predictors of readmission.
Main Results:
- The overall readmission rate was 7.6% at 30 days and 8.1% at 60 days post-discharge.
- The median age of readmitted patients was 67 years, with 65% having pre-existing conditions.
- Significant predictors of readmission included the extent of lung involvement (OR > 4), age over 60 (OR not specified), diabetes (OR = 3.43), and high creatinine levels (≥ 1.2 mg/dL, OR = 2.15).
Conclusions:
- The study highlights a notable readmission rate among COVID-19 survivors.
- Lung involvement, advanced age, comorbidities like diabetes, and impaired kidney function are critical risk factors for readmission.
- These findings underscore the need for targeted monitoring and management strategies for high-risk COVID-19 patients post-discharge.
Objective:
COVID-19 has been introduced by the World Health Organization as a health emergency worldwide. Up to 9% of the patients with COVID-19 may be readmitted by 2 months after discharge. This study aimed to estimate the readmission rate and identify main risk factors for readmission in these patients. In this prospective study, 416 discharged COVID patients followed up with a minimum 1 month and the readmission rate was recorded. Evaluated characteristics included time of readmission, age and sex, main symptoms of disease, result of computed tomography scan, reverse transcription polymerase chain reaction test and treatment modalities.
Results:
Regarding readmission, 51 patients of 416 discharged patients, was readmitted during the study period. The rate of readmission for 30 and 60 days after discharge was 7.6% and 8.1%, respectively. The median age of the readmitted patients was 67 years (IQR: 53-78). About 65% of readmitted patients had underlying disease. The most significant factor in readmission rate was related to the site of lung involvement (OR > 4). Age over 60 years, underlying disease especially diabetes (OR = 3.43), high creatinine level (≥ to 1.2 mg/dl) (OR = 2.15) were the most important predictors of readmission.
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