Association between chronic kidney disease and mortality in patients with a confirmed COVID-19 diagnosis

Objective: To determine the association between chronic kidney disease (CKD) and
mortality in persons with a confirmed coronavirus disease 2019 (COVID-19)
diagnosis.
Methods: Cross-sectional secondary baseline study. The study population consisted
of 243,065 patients confirmed to have COVID-19 during May–December 2020. Stata
16.0 was used for statistical analysis, Chi-square test was used for bivariate analysis,
and Poisson regression with robust variances was used for multiple analysis.
Results: The prevalence of patients with a confirmed COVID-19 diagnosis who had
CKD and died was 1.42 times the prevalence of mortality in those without CKD.
The comorbidities combined with CKD that presented the highest probability of
mortality were diabetes mellitus and hypertension.
Conclusions: CKD is associated with a high mortality rate in patients with a
confirmed COVID-19 diagnosis. Patients with CKD, diabetes mellitus, and arterial
hypertension have a higher prevalence of mortality than those without comorbidities.