Aims: Prognostic value of FGF23 in end-stage renal disease (ESRD) patients is controversial. A systematic review was conducted to quantify the association between elevated FGF23 and overall mortality among ESRD patients.
Methods: MEDLINE, EMBASE, PubMed and reference lists were searched. Quality of the included studies was evaluated using Newcastle-Ottawa Scale checklist. Pooled effects were calculated as hazard ratio using fixed-effect models, and chi-square test was used for heterogeneity testing.
Results: Seven studies (1406 patients) were included. Patients were at mean age of 62.3. Mean follow-up was 29.4 months. From the pooled analysis, elevated FGF23 was significantly associated with increased all-cause mortality (hazard ratio: 1.53; 95% CI: 1.05-2.25). p-value for heterogeneity was 0.10, I(2) = 48%.
Conclusions: ESRD patients with elevated FGF23 concentration have higher risk of death.
Keywords: FGF23; dialysis; end-stage renal disease; mortality.