Related Experiment Video
Updated: May 23, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
Vitamin D status in children with chronic kidney disease
Deborah R Stein1, Henry A Feldman, Catherine M Gordon
1Department of Pediatrics, Children's Hospital Boston, Boston, MA, USA. deborah.stein@childrens.harvard.edu
Insights
Vitamin D deficiency is common in children with chronic kidney disease (CKD). Optimizing vitamin D levels may help manage hyperparathyroidism in pediatric CKD patients.
Area of Science:
- Pediatric Nephrology
- Endocrinology
- Nutritional Science
Background:
- Disordered mineral metabolism in chronic kidney disease (CKD) is linked to significant morbidity and mortality.
- Vitamin D status, dietary intake, and parathyroid hormone (PTH) secretion are critical in CKD patients.
Purpose of the Study:
- To investigate vitamin D status and its relationship with PTH in pediatric CKD patients.
- To assess the prevalence of vitamin D deficiency and insufficiency in this population.
Main Methods:
- Cross-sectional study of 100 pediatric CKD patients (stages 1-5).
- Measured serum levels of 25-hydroxyvitamin D [25(OH)D] and 1,25-dihydroxyvitamin D [1,25(OH)(2)D].
- Collected data on parathyroid hormone (PTH) levels and nutrient intake.
Main Results:
- 40% of patients had suboptimal serum 25(OH)D levels (deficient or insufficient).
- No correlation was found between serum 25(OH)D and dietary vitamin D intake.
- A significant relationship was observed between 25(OH)D and PTH levels.
Conclusions:
- High prevalence of hyperparathyroidism in early-stage pediatric CKD.
- Optimizing vitamin D levels may help prevent or improve hyperparathyroidism in early CKD.
- Vitamin D optimization is likely important as adjunctive therapy in advanced pediatric CKD.
Background:
The role of vitamin D status in patients with renal insufficiency and its relation to dietary intake and parathyroid hormone (PTH) secretion is of utmost interest given the morbidity and mortality associated with the disordered mineral metabolism seen in chronic kidney disease (CKD).
Methods:
We conducted a cross-sectional study of 100 pediatric patients with a diagnosis of CKD stage 1-5 at Children's Hospital Boston, measuring blood levels of 25-hydroxyvitamin D [25(OH)D], 1,25-dihydroxyvitamin D [1,25(OH)(2)D], and parathyroid hormone and obtaining data on nutrient intake and other variables related to vitamin D status.
Results:
Subjects ranged in age from 6 months to 18 years, and 60 were male, 40 female. Of the 100 patients, 16 % were deficient in 25(OH)D (≤ 20 ng/mL) and another 24 % were insufficient (≤ 30 ng/mL), with 40 % in the suboptimal range. Serum 25(OH)D and dietary vitamin D intake were not correlated.
Conclusions:
We found a high prevalence of hyperparathyroidism in early-stage CKD and a significant relationship between 25(OH)D and PTH regardless of calcitriol level. Our study results support the suggestion that optimization of vitamin D levels may provide additional benefit in preventing or improving hyperparathyroidism in patients with early CKD and likely remains important as an adjunctive therapy in children with advanced CKD.
Related Concept Videos
Chronic Kidney Disease II: Clinical Manifestations
Chronic Kidney Disease III: Interprofessional Care
Chronic Kidney Disease I: Introduction
Chronic Kidney Disease IV: Nursing Management
Acute Kidney Injury III: Clinical Manifestations
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration
