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Lactate dehydrogenase and susceptibility to deterioration of mild COVID-19 patients: a multicenter nested
Jichan Shi1, Yang Li2, Xian Zhou2
1Department of Infectious Diseases, Wenzhou Central Hospital, Wenzhou, 325000, China.
Insights
Identifying high-risk COVID-19 patients is crucial. Advanced age and elevated lactate dehydrogenase levels are key indicators of potential deterioration in mild cases.
Area of Science:
- Infectious Diseases
- Epidemiology
- Internal Medicine
Background:
- The rapid spread of Coronavirus disease 2019 (COVID-19) necessitates early identification of patients at risk of severe illness.
- Mild COVID-19 cases can progress to severe disease, highlighting the need for predictive markers.
Purpose of the Study:
- To identify clinical characteristics associated with disease progression in mild COVID-19 patients.
- To determine independent risk factors for exacerbation among individuals with initially mild Coronavirus disease 2019.
Main Methods:
- A multicenter nested case-control study design was employed.
- Confirmed mild COVID-19 patients were categorized into stable and progression groups for comparative analysis.
- Multivariate logistic regression was used to identify independent predictors of disease exacerbation.
Main Results:
- Older age, male sex, dyspnea, hypertension, and elevated lactate dehydrogenase (LDH) and C-reactive protein levels were more common in patients who progressed.
- Advanced age (OR, 1.012) and higher LDH levels (OR, 1.012) were independently associated with disease exacerbation in mild COVID-19.
- The study analyzed 85 patients, with 16 in the progression group and 69 in the stable mild group.
Conclusions:
- Advanced age and elevated lactate dehydrogenase levels are significant independent risk factors for progression in mild COVID-19.
- Clinicians should closely monitor elderly patients and those with high LDH levels for signs of worsening illness.
- These findings aid in risk stratification and management of mild Coronavirus disease 2019 cases.
Background:
Coronavirus disease 2019 (COVID-19) has infected more than 4 million people within 4 months. There is an urgent need to properly identify high-risk cases that are more likely to deteriorate even if they present mild diseases on admission.
Methods:
A multicenter nested case-control study was conducted in four designated hospitals in China enrolling confirmed COVID-19 patients who were mild on admission. Baseline clinical characteristics were compared between patients with stable mild illness (stable mild group) and those who deteriorated from mild to severe illness (progression group).
Results:
From Jan 17, 2020, to Feb 1, 2020, 85 confirmed COVID-19 patients were enrolled, including 16 in the progression group and 69 in the stable mild group. Compared to stable mild group (n = 69), patients in the progression group (n = 16) were more likely to be older, male, presented with dyspnea, with hypertension, and with higher levels of lactase dehydrogenase and c-reactive protein. In multivariate logistic regression analysis, advanced age (odds ratio [OR], 1.012; 95% confidence interval [CI], 1.020-1.166; P = 0.011) and the higher level of lactase dehydrogenase (OR, 1.012; 95% CI, 1.001-1.024; P = 0.038) were independently associated with exacerbation in mild COVID-19 patients.
Conclusion:
Advanced age and high LDH level are independent risk factors for exacerbation in mild COVID-19 patients. Among the mild patients, clinicians should pay more attention to the elderly patients or those with high LDH levels.
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