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Relationship between Anemia and Serum Concentrations of Calcium and Phosphorus in Advanced Non-Dialysis-Dependent

Mauro Boronat1, Ángelo Santana, Elvira Bosch

  • 1Section of Endocrinology and Nutrition, Hospital Universitario Insular, Las Palmas de Gran Canaria, Spain.

Nephron
|October 21, 2016
PubMed

Insights

Anemia in advanced chronic kidney disease (CKD) is linked to mineral metabolism. Higher calcium and phosphorus levels are significantly associated with anemia in non-dialysis CKD patients.

Area of Science:

  • Nephrology
  • Bone Metabolism
  • Anemia Pathophysiology

Background:

  • Anemia of chronic kidney disease (CKD) is common, especially in dialysis patients.
  • Biochemical abnormalities in metabolic bone disease are linked to anemia, but individual effects are unclear.
  • This study focuses on advanced non-dialysis-dependent CKD patients.

Purpose of the Study:

  • To assess the relationship between anemia and metabolic bone disease biomarkers.
  • To investigate the individual impact of biomarkers on anemia development in advanced CKD.
  • To analyze associations in a cohort of adult non-dialysis-dependent CKD patients.

Main Methods:

  • 382 adult patients with advanced CKD were evaluated over 3 years.
  • Logistic regression models analyzed associations between anemia and serum levels of calcium, phosphorus, PTH, 25(OH)D3, and alkaline phosphatase.
  • Models were adjusted for demographic, clinical, and biochemical covariates.

Main Results:

  • Serum calcium and phosphorus levels were significantly associated with anemia.
  • Higher calcium and phosphorus levels correlated with lower and higher odds of anemia, respectively.
  • Female sex and lower serum albumin were also independently associated with anemia.

Conclusions:

  • Circulating calcium and phosphorus levels are strongly linked to anemia in advanced non-dialysis CKD.
  • These mineral imbalances are key factors in the development of anemia in this patient group.
Abstract

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