Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study

Abstract Background Epidemics of chronic kidney disease of undetermined causes (CKDu) among young male agricultural workers have been observed in many tropical regions. Western Kenya has similar climatic and occupational characteristics as many of those areas. The study objectives were to characteri...

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Main Authors: Michelle H. Hathaway, Crystal L. Patil, Aloyce Odhiambo, Dickens Onyango, Samuel Dorevitch
Format: Article
Language:English
Published: BMC 2023-06-01
Series:BMC Nephrology
Subjects:
Online Access:https://doi.org/10.1186/s12882-023-03213-2
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author Michelle H. Hathaway
Crystal L. Patil
Aloyce Odhiambo
Dickens Onyango
Samuel Dorevitch
author_facet Michelle H. Hathaway
Crystal L. Patil
Aloyce Odhiambo
Dickens Onyango
Samuel Dorevitch
author_sort Michelle H. Hathaway
collection DOAJ
description Abstract Background Epidemics of chronic kidney disease of undetermined causes (CKDu) among young male agricultural workers have been observed in many tropical regions. Western Kenya has similar climatic and occupational characteristics as many of those areas. The study objectives were to characterize prevalence and predictors of CKDu, such as, HIV, a known cause of CKD, in a sugarcane growing region of Kenya; and to estimate prevalence of CKDu across occupational categories and evaluate if physically demanding work or sugarcane work are associated with reduced eGFR. Methods The Disadvantaged Populations eGFR Epidemiology Study (DEGREE) protocol was followed in a cross-sectional study conducted in Kisumu County, Western Kenya. Multivariate logistic regression was performed to identify predictors of reduced eGFR. Results Among 782 adults the prevalence of eGFR < 90 was 9.85%. Among the 612 participants without diabetes, hypertension, and heavy proteinuria the prevalence of eGFR < 90 was 8.99% (95%CI 6.8%, 11.5%) and 0.33% (95%CI 0.04%, 1.2%) had eGFR < 60. Among the 508 participants without known risk factors for reduced eGFR (including HIV), the prevalence of eGFR < 90 was 5.12% (95%CI 3.4%, 7.4%); none had eGFR < 60. Significant risk factors for reduced eGFR were sublocation, age, body mass index, and HIV. No association was found between reduced eGFR and work in the sugarcane industry, as a cane cutter, or in physically demanding occupations. Conclusion CKDu is not a common public health problem in this population, and possibly this region. We recommend that future studies should consider HIV to be a known cause of reduced eGFR. Factors other than equatorial climate and work in agriculture may be important determinants of CKDu epidemics.
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spelling doaj.art-19210b1bf3ba4951b0f6b1fa3818815d2023-06-11T11:08:03ZengBMCBMC Nephrology1471-23692023-06-0124111410.1186/s12882-023-03213-2Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional studyMichelle H. Hathaway0Crystal L. Patil1Aloyce Odhiambo2Dickens Onyango3Samuel Dorevitch4Division of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois ChicagoDepartment of Human Development Nursing Science, College of Nursing, University of Illinois ChicagoSafe Water and AIDS Project, Behind Royal City Garden Hotel, Milimani EstateCounty Department of Health, County Government of KisumuDivision of Environmental and Occupational Health Sciences, School of Public Health, University of Illinois ChicagoAbstract Background Epidemics of chronic kidney disease of undetermined causes (CKDu) among young male agricultural workers have been observed in many tropical regions. Western Kenya has similar climatic and occupational characteristics as many of those areas. The study objectives were to characterize prevalence and predictors of CKDu, such as, HIV, a known cause of CKD, in a sugarcane growing region of Kenya; and to estimate prevalence of CKDu across occupational categories and evaluate if physically demanding work or sugarcane work are associated with reduced eGFR. Methods The Disadvantaged Populations eGFR Epidemiology Study (DEGREE) protocol was followed in a cross-sectional study conducted in Kisumu County, Western Kenya. Multivariate logistic regression was performed to identify predictors of reduced eGFR. Results Among 782 adults the prevalence of eGFR < 90 was 9.85%. Among the 612 participants without diabetes, hypertension, and heavy proteinuria the prevalence of eGFR < 90 was 8.99% (95%CI 6.8%, 11.5%) and 0.33% (95%CI 0.04%, 1.2%) had eGFR < 60. Among the 508 participants without known risk factors for reduced eGFR (including HIV), the prevalence of eGFR < 90 was 5.12% (95%CI 3.4%, 7.4%); none had eGFR < 60. Significant risk factors for reduced eGFR were sublocation, age, body mass index, and HIV. No association was found between reduced eGFR and work in the sugarcane industry, as a cane cutter, or in physically demanding occupations. Conclusion CKDu is not a common public health problem in this population, and possibly this region. We recommend that future studies should consider HIV to be a known cause of reduced eGFR. Factors other than equatorial climate and work in agriculture may be important determinants of CKDu epidemics.https://doi.org/10.1186/s12882-023-03213-2Chronic kidney disease of undetermined causesHIVOccupational healthEnvironmental epidemiologyGlobal health
spellingShingle Michelle H. Hathaway
Crystal L. Patil
Aloyce Odhiambo
Dickens Onyango
Samuel Dorevitch
Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
BMC Nephrology
Chronic kidney disease of undetermined causes
HIV
Occupational health
Environmental epidemiology
Global health
title Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
title_full Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
title_fullStr Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
title_full_unstemmed Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
title_short Prevalence and predictors of chronic kidney disease of undetermined causes (CKDu) in Western Kenya’s “sugar belt”: a cross-sectional study
title_sort prevalence and predictors of chronic kidney disease of undetermined causes ckdu in western kenya s sugar belt a cross sectional study
topic Chronic kidney disease of undetermined causes
HIV
Occupational health
Environmental epidemiology
Global health
url https://doi.org/10.1186/s12882-023-03213-2
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