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Oxford University Press (OUP), Nephrology Dialysis Transplantation, 4(30), p. 613-621

DOI: 10.1093/ndt/gfu352

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Prevalence and correlates of gout in a large cohort of patients with chronic kidney disease: the German Chronic Kidney Disease (GCKD) study

Journal article published in 2014 by for the Gckd Study Investigators, Jiaojiao Jing, S. I. Titze, K.-U. Eckardt, A. Köttgen, H.-U. Prokosch, B. Barthlein, B. Bärthlein, A. Reis, A. Weigel, Stephanie I. Titze, A. B. Ekici, O. Gefeller ORCID, U. T. Schultheiss, E. S. Schaeffner and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Reduced kidney function is a risk factor for hyperuricaemia and gout, but limited information on the burden of gout is available from studies of patients with chronic kidney disease (CKD). We therefore examined the prevalence and correlates of gout in the large prospective observational German Chronic Kidney Disease (GCKD) study. Data from 5085 CKD patients aged 18-74 years with an estimated glomerular filtration rate (eGFR) of 30-< 60 mL/min/1.73 m(2) or eGFR a parts per thousand yen60 and overt proteinuria at recruitment and non-missing values for self-reported gout, medications and urate measurements from a central laboratory were evaluated. The overall prevalence of gout was 24.3%, and increased from 16.0% in those with eGFR a parts per thousand yen60 mL/min/1.73 m(2) to 35.6% in those with eGFR < 30. Of those with self-reported gout, 30.7% of individuals were not currently taking any gout medication and among gout patients on urate lowering therapy, 47.2% still showed hyperuricaemia. Factors associated with gout were serum urate, lower eGFR, advanced age, male sex, higher body mass index and waist-to-hip ratio, higher triglyceride and C-reactive protein (CRP) concentrations, alcohol intake and diuretics use. While lower eGFR categories showed significant associations with gout in multivariable-adjusted models (prevalence ratio 1.46 for eGFR < 30 compared with eGFR a parts per thousand yen60, 95% confidence interval 1.21-1.77), associations between gout and higher urinary albumin-to-creatinine ratio in this CKD population were not significant. Self-reported gout is common among patients with CKD and lower GFR is strongly associated with gout. Pharmacological management of gout in patients with CKD is suboptimal. Prospective follow-up will show whether gout and hyperuricaemia increase the risk of CKD progression and cardiovascular events in the GCKD study.