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Associations of plasma fibroblast growth factor 23 and other markers of chronic kidney disease—Mineral and bone disorder with all-cause mortality in South African patients on maintenance dialysis: A 3-year prospective cohort study.
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- المؤلفون: Waziri, Bala1,2,3 ; Musenge, Eustasius1; Duarte, Raquel2; Dickens, Caroline2; Dix-Peek, Therese2; Rekhviashvili, Vakhtang4; Paget, Graham2; Naicker, Saraladevi2
- المصدر:
PLoS ONE. 5/20/2019, Vol. 14 Issue 5, p1-17. 17p.
- الموضوع:
- معلومة اضافية
- الموضوع:
- نبذة مختصرة :
Introduction: Few studies have linked high levels of plasma C-terminal fibroblast growth factor 23 (FGF23) with poor clinical outcomes in patients on maintenance haemodialysis (MHD), while the association between intact FGF23 and mortality in this group of patients remains inconclusive. Therefore, the aim of this study was to evaluate the association between plasma levels of intact FGF23 and mortality in dialysis patients. Methods: A prospective multicenter study involving patients undergoing dialysis at three dialysis centers in Johannesburg was undertaken between 1st October 2014 and 31st December 2017. Results: The study comprised 165 chronic dialysis patients (111 blacks, 54 whites) with a mean age of 46.6 ±14.2 years. During a three year follow up period, there were 46 deaths (1.03 per 100 person-years). The median plasma FGF 23 level was 382 pg/ml (interquartile range [IQR], 145–2977). In adjusted multivariable analyses, there was a non-statistically significant increase in the risk of mortality with higher quartiles of FGF 23 levels: the adjusted hazard ratios (HR) for the second, third and fourth quantiles were HR 3.20 (95% CI, 0.99–10.35; P = 0.052), HR 2.43(95% CI,0.65–9.09; P = 0.19), and HR 2.09 (95% CI, 0.66–7.32; P = 0.25),respectively. Corrected serum calcium 2.38–2.5 mmol/l [HR 2.98 (95% CI, 1.07–8.29; P = 0.04] and > 2.50 mmol/l [HR 5.50 (95% CI, 1.84–16.48; P = 0.002] were independently associated with increased risk of death. Likewise, patients with intact parathyroid hormone > 600 pg/ml had a 3.46-fold higher risk of death (HR 3.46, 95% CI, 1.22–9.82 P = 0.019). These findings persisted in time -dependent analyses. Conclusion: Higher levels of intact FGF 23 appear not to be independently associated with all-cause mortality in our dialysis patients, while hypercalcaemia and severe hyperparathyroidism were found to be independent predictors of mortality in this cohort of patients. [ABSTRACT FROM AUTHOR]
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