• J. Investig. Med. · Oct 2020

    Meta Analysis

    Incidence of acute kidney injury and its association with mortality in patients with COVID-19: a meta-analysis.

    • Panupong Hansrivijit, Chenchen Qian, Boonphiphop Boonpheng, Charat Thongprayoon, Saraschandra Vallabhajosyula, Wisit Cheungpasitporn, and Nasrollah Ghahramani.
    • Department of Internal Medicine, UPMC Pinnacle Harrisburg, Harrisburg, Pennsylvania, USA hansrivijitp@upmc.edu.
    • J. Investig. Med. 2020 Oct 1; 68 (7): 126112701261-1270.

    AbstractAcute kidney injury (AKI) is a complication of COVID-19. However, the incidence of AKI in COVID-19 varies among studies. Thus, we aimed to evaluate the pooled incidence of AKI and its association with mortality in patients with COVID-19 using a meta-analysis. We search Ovid MEDLINE, EMBASE, and the Cochrane Library for eligible publications reporting the clinical characteristics of patients with COVID-19 without language restriction. Incidence of AKI and mortality were reported. Meta-regression was used to describe the association between outcomes. From 26 studies (n=5497), the pooled incidence of AKI in patients with COVID-19 was 8.4% (95% CI 6.0% to 11.7%) with a pooled incidence of renal replacement therapy of 3.6% (95% CI 1.8% to 7.1%). The incidence of AKI was higher in critically ill patients (19.9%) compared with hospitalized patients (7.3%). The pooled estimated odds ratio for mortality from AKI was 13.33 (95% CI 4.05 to 43.91). No potential publication bias was detected. By using meta-regression analyses, the incidence of AKI was positively associated with mortality after adjusted for age and sex (Q=26.18; p=0.02). Moreover, age (p<0.01), diabetes (p=0.02), hypertension (p<0.01) and baseline serum creatinine levels (p=0.04) were positively associated with AKI incidence in adjusted models. In conclusion, AKI is present in 8.3% of overall patients with COVID-19 and in 19.9% of critically ill patients with COVID-19. Presence of AKI is associated with 13-fold increased risk of mortality. Age, diabetes, hypertension, and baseline serum creatinine levels are associated with increased AKI incidence.© American Federation for Medical Research 2020. No commercial re-use. See rights and permissions. Published by BMJ.

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