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Published on: November 10, 2023
Comorbidity and its impact on 1590 patients with COVID-19 in China: a nationwide analysis
Wei-Jie Guan1,2, Wen-Hua Liang3,2, Yi Zhao3,2
1State Key Laboratory of Respiratory Disease and National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.
Insights
Patients with COVID-19 and comorbidities face higher risks of severe outcomes like ICU admission or death. Having multiple comorbidities significantly increases these risks, highlighting the importance of managing underlying health conditions.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- The COVID-19 pandemic presents a rapidly evolving global health crisis.
- Understanding risk factors for severe outcomes in COVID-19 patients is crucial for clinical management.
- Comorbidities are suspected to influence COVID-19 patient prognosis.
Purpose of the Study:
- To assess the risk of severe adverse outcomes in COVID-19 patients.
- To stratify risk based on the presence and number of comorbidities.
- To identify specific comorbidities associated with poor clinical outcomes.
Main Methods:
- Analysis of data from 1590 hospitalized COVID-19 patients in China.
- Inclusion of composite endpoints: ICU admission, invasive ventilation, or death.
- Comparison of composite endpoint risk based on comorbidity status (none, one, or multiple).
Main Results:
- 16.0% of patients had severe cases; 8.2% reached composite endpoints.
- Hypertension (16.9%) and diabetes (8.2%) were the most common comorbidities.
- COPD, diabetes, hypertension, and malignancy were significant risk factors for severe outcomes.
Conclusions:
- COVID-19 patients with any comorbidity experience worse clinical outcomes.
- An increasing number of comorbidities correlates with poorer prognosis.
- Comorbidity status is a critical determinant of COVID-19 severity and patient outcomes.
Background:
The coronavirus disease 2019 (COVID-19) outbreak is evolving rapidly worldwide.
Objective:
To evaluate the risk of serious adverse outcomes in patients with COVID-19 by stratifying the comorbidity status.
Methods:
We analysed data from 1590 laboratory confirmed hospitalised patients from 575 hospitals in 31 provinces/autonomous regions/provincial municipalities across mainland China between 11 December 2019 and 31 January 2020. We analysed the composite end-points, which consisted of admission to an intensive care unit, invasive ventilation or death. The risk of reaching the composite end-points was compared according to the presence and number of comorbidities.
Results:
The mean age was 48.9 years and 686 (42.7%) patients were female. Severe cases accounted for 16.0% of the study population. 131 (8.2%) patients reached the composite end-points. 399 (25.1%) reported having at least one comorbidity. The most prevalent comorbidity was hypertension (16.9%), followed by diabetes (8.2%). 130 (8.2%) patients reported having two or more comorbidities. After adjusting for age and smoking status, COPD (HR (95% CI) 2.681 (1.424-5.048)), diabetes (1.59 (1.03-2.45)), hypertension (1.58 (1.07-2.32)) and malignancy (3.50 (1.60-7.64)) were risk factors of reaching the composite end-points. The hazard ratio (95% CI) was 1.79 (1.16-2.77) among patients with at least one comorbidity and 2.59 (1.61-4.17) among patients with two or more comorbidities.
Conclusion:
Among laboratory confirmed cases of COVID-19, patients with any comorbidity yielded poorer clinical outcomes than those without. A greater number of comorbidities also correlated with poorer clinical outcomes.
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