Outcomes Associated with Serum Calcium Level in Men with Non-Dialysis-Dependent Chronic Kidney Disease
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TLDR
Clinical trials are warranted to determine whether maintaining normal serum calcium can improve outcomes in patients with NDD CKD, and higher serum calcium is associated with increased long-term mortality, and lower calcium isassociated with increased short-term death in patients in the time-varying models.Abstract:
Background and objectives: Elevated serum calcium has been associated with increased mortality in dialysis patients, but it is unclear whether the same is true in non-dialysis-dependent (NDD) chronic kidney disease (CKD). Outcomes associated with low serum calcium are also not well-characterized. Design, setting, participants, & measurements: We examined associations of baseline, time-varying, and time-averaged serum calcium with all-cause mortality in a historic prospective cohort of 1243 men with moderate and advanced NDD CKD by using Cox models. Results: The association of serum calcium with mortality varied according to the applied statistical models. Higher baseline calcium and time-averaged calcium were associated with higher mortality (multivariable adjusted hazard ratio (95% confidence interval): 1.31 (1.13, 1.53); P Conclusions: Higher serum calcium is associated with increased long-term mortality (as reflected by the baseline and time-averaged models), and lower serum calcium is associated with increased short-term mortality (as reflected by the time-varying models) in patients with NDD CKD. Clinical trials are warranted to determine whether maintaining normal serum calcium can improve outcomes in these patients.read more
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