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Association of Early-Phase In-Hospital Glycemic Fluctuation With Mortality in Adult Patients With Coronavirus Disease
Liangkai Chen1, Wenwu Sun2, Yanli Liu2
1Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, and Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Insights
Poor early glycemic control in hospitalized coronavirus disease 2019 (COVID-19) patients is linked to worse outcomes. Higher glucose levels and fluctuations during the first week increased risks of acute respiratory distress syndrome and death.
Area of Science:
- Internal Medicine
- Endocrinology
- Infectious Diseases
Background:
- The coronavirus disease 2019 (COVID-19) pandemic has caused a global health crisis.
- Glycemic control is crucial for managing critically ill patients, but its impact on COVID-19 outcomes is not fully understood.
Purpose of the Study:
- To investigate the association between early-phase in-hospital glycemic control and adverse outcomes in COVID-19 patients.
- To determine if glycemic status and fluctuation in the first week of hospitalization impact severe pneumonia, acute respiratory distress syndrome (ARDS), and mortality.
Main Methods:
- A large case series of 548 hospitalized COVID-19 patients in Wuhan, China.
- Collected daily fasting glucose data during the first week of hospitalization.
- Analyzed glycemic status (mean glucose) and fluctuation (variance of glucose levels) in relation to clinical outcomes.
Main Results:
- Patients with higher mean glucose levels in the first week had increased risks of severe pneumonia, ARDS, and death.
- Elevated glycemic fluctuation was associated with a nearly twofold increased risk of ARDS (RR 1.97) and a 2.7-fold increased risk of mortality.
- Older age, comorbidities, and abnormal laboratory markers were associated with higher glucose levels.
Conclusions:
- Early-phase glycemic control is a significant factor in COVID-19 patient outcomes.
- Optimizing glycemic control strategies during the early hospitalization phase may improve clinical outcomes for COVID-19 patients.
Objective:
To investigate the association of in-hospital early-phase glycemic control with adverse outcomes among inpatients with coronavirus disease 2019 (COVID-19) in Wuhan, China.
Research Design And Methods:
The study is a large case series, and data were obtained regarding consecutive patients hospitalized with COVID-19 in the Central Hospital of Wuhan between 2 January and 15 February 2020. All patients with definite outcomes (death or discharge) were included. Demographic, clinical, treatment, and laboratory information were extracted from electronic medical records. We collected daily fasting glucose data from standard morning fasting blood biochemistry to determine glycemic status and fluctuation (calculated as the square root of the variance of daily fasting glucose levels) during the 1st week of hospitalization.
Results:
A total of 548 patients were included in the study (median age 57 years; 298 [54%] were women, and n = 99 had diabetes [18%]), 215 suffered acute respiratory distress syndrome (ARDS), 489 survived, and 59 died. Patients who had higher mean levels of glucose during their 1st week of hospitalization were older and more likely to have a comorbidity and abnormal laboratory markers, prolonged hospital stays, increased expenses, and greater risks of severe pneumonia, ARDS, and death. Compared with patients with the lowest quartile of glycemic fluctuation, those who had the highest quartile of fluctuation magnitude had an increased risk of ARDS (risk ratio 1.97 [95% CI 1.01, 4.04]) and mortality (hazard ratio 2.73 [95% CI 1.06, 7.73]).
Conclusions:
These results may have implications for optimizing glycemic control strategies in COVID-19 patients during the early phase of hospitalization.
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