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. 2021 Dec;53(12):2627-2633.
doi: 10.1007/s11255-021-02801-1. Epub 2021 Mar 8.

Incidence of death from kidney diseases among cancer patients: a US population-based analysis

Xiaoli Li  1 , Wenhui Chen  1 , Jinfang Feng  1 , Bo Zhao  2
Affiliations

Incidence of death from kidney diseases among cancer patients: a US population-based analysis

Xiaoli Li et al. Int Urol Nephrol. 2021 Dec.

Abstract

Background: The purpose of our study was to retrospectively analyze the characteristic of death from kidney diseases among cancer patients and to screen the risk factors associated with nephrotic death using data from the surveillance, epidemiology, and end results (SEER) database.

Methods: The information on cancer patients dying of kidney diseases was retrieved from the SEER database. Standardized mortality ratios (SMRs) were calculated using the US general population as reference. Univariate and multivariate Cox regression analyses were conducted to screen potential risk factors of death from kidney diseases.

Results: Data of 7,167,808 patients diagnosed with malignant tumors between 2000 and 2016 were collected. Of these, 25,903 patients died of kidney diseases. Compared to the general population, cancer patients were at an elevated risk of nephrotic death with an SMR of 3.17, and this risk continues to increase in recent years. The majority of deaths from kidney diseases occur in patients > 45-year-old diagnosed with cancer of prostate, colorectum, and breast. Additionally, cancer patients with diagnosis in recent years, older age at diagnosis, black race, higher grade, and poorer disease stage were more likely to die of kidney diseases are at higher risk of nephrotic death compared to other cancer survivors.

Conclusion: The risk of death from kidney diseases is increasing among cancer survivors recently. Nephrologists should be actively involved in certain facets of cancer treatment, and provide effective nephrology care, especially for elderly patients with black race, higher grade, and poorer disease stage.

Keywords: Cancer; Kidney disease; Mortality; Risk factor.

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