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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Kidney+Dis
2014 ; 64
(1
): 95-103
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Comparative effectiveness of calcium acetate and sevelamer on clinical outcomes
in elderly hemodialysis patients enrolled in Medicare part D
#MMPMID24387795
Yusuf AA
; Weinhandl ED
; St Peter WL
Am J Kidney Dis
2014[Jul]; 64
(1
): 95-103
PMID24387795
show ga
BACKGROUND: Phosphate binders are an important therapeutic option for managing
hyperphosphatemia in hemodialysis patients. Whether sevelamer confers a survival
advantage over calcium acetate is unclear. STUDY DESIGN: Observational cohort
study using US Renal Data System (USRDS) data linked to Medicare Part D
prescription drug data. SETTING & PARTICIPANTS: Medicare-enrolled elderly
incident hemodialysis patients initiating calcium acetate or sevelamer therapy
between July 1, 2006, and March 31, 2011. PREDICTOR: Prescription for sevelamer
(hydrochloride or carbonate) or calcium acetate. OUTCOMES & MEASUREMENTS:
All-cause and cardiovascular-related mortality, hospital admissions and hospital
days assessed from Medicare Parts A, B, and D claims and other USRDS data.
RESULTS: The sevelamer and calcium-acetate groups included 16,916 and 18,335
patients, respectively. After multivariable adjustment, all-cause (21.9 vs 21.8
deaths/100 patient-years; adjusted HR, 0.97; 95% CI, 0.94-1.03) and
cardiovascular (8.7 vs 8.6 deaths/100 patient-years; HR, 0.99; 95% CI, 0.93-1.04)
mortality did not differ significantly between the sevelamer and calcium-acetate
(referent) groups. Mortality results in propensity score-matched cohorts showed
significantly lower risk of death in sevelamer- than in calcium-acetate-treated
patients (HR, 0.94; 95% CI, 0.91-0.98). Mortality results from additional
analyses including only patients with low-income subsidy status were consistent
with results from analyses including patients with and without low-income subsidy
status. There were no significant differences between the sevelamer and
calcium-acetate groups for all-cause and cardiovascular-related first
hospitalization, multiple hospitalizations, and hospital days. LIMITATIONS:
Results may not be applicable to younger patients; information about laboratory
data and over-the-counter calcium-containing binders was lacking. CONCLUSIONS:
Relative to treatment with calcium acetate, treatment with sevelamer was
associated with similar or slightly lower risk of death and similar risk of
hospitalization in elderly incident hemodialysis patients.