期刊
CLINICAL JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY
卷 16, 期 1, 页码 14-25出版社
AMER SOC NEPHROLOGY
DOI: 10.2215/CJN.09610620
关键词
COVID-19; acute kidney injury; mortality; kidney function; respiratory failure; Length of stay; racial disparities; obesity; diabetes; Black race
资金
- US Department of Veterans Affairs
- Institute for Public Health at Washington University in St. Louis, Missouri
- American Society of Nephrology
- KidneyCure predoctoral fellowship
This study aimed to describe rates and outcomes of AKI in a national cohort of US veterans hospitalized with COVID-19. The results showed that AKI was common in these patients and associated with higher risk of health care resource utilization and death, with nearly half of patients not recovering to baseline by discharge. Substantial geographic variation and temporal decline in rates and severity of AKI were observed.
Background and objectives Coronavirus disease 2019 (COVID-19) is associated with higher risk of AKI. We aimed to describe rates and characterize predictors and health outcomes associated with AKI in a national cohort of US veterans hospitalized with COVID-19. Design, setting, participants, & measurements In a cohort of 5216 US veterans hospitalized with COVID-19 identified through July 23, 2020, we described changes inserum creatinine and examined predictors of AKI and the associations between AKI, health resource utilization, and death, utilizing logistic regressions. We characterized geographic and temporal variations in AKI rates and estimated variance explained by key variables utilizing Poisson regressions. Results In total, 1655 (32%) participants had AKI; 961 (58%), 223 (13%), and 270 (16%) met Kidney Disease Improving Global Outcomes definitions of stage 1, 2, and 3 AKI, respectively, and 201 (12%) received KRT. Eight percent of participants had AKI within 1 day of hospitalization, and 47% did not recover to baseline serum creatinine by discharge. Older age, Black race, male gender, obesity, diabetes, hypertension, and lower eGFR were significant predictors of AKI during hospitalization with COVID-19. AKI was associated with higher mechanical ventilation use (odds ratio, 6.46; 95% confidence interval, 5.52 to 7.57) and longer hospital stay (5.56 additional days; 95% confidence interval, 4.78 to 6.34). AKIwas also associated with higher risk of death (odds ratio, 6.71; 95% confidence interval, 5.62 to 8.04); this association was stronger in Blacks (P value of interaction <0.001). Hospital-level rates of AKI exhibited substantial geographic variability, ranging from 10% to 56%. Between March and July 2020, AKI rates declined from 40% to 27%; proportions of AKI stage 3 and AKI requiring KRT decreased from 44% to 17%. Both geographic and temporal variabilities were predominately explained by percentages of Blacks (31% and 49%, respectively). Conclusions AKI is common during hospitalization with COVID-19 and associated with higher risk of health care resource utilization and death. Nearly half of patients with AKI did not recover to baseline by discharge. Substantial geographic variation and temporal decline in rates and severity of AKI were observed.
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