Evidence map›Paper›PMID 22551881›Full record

Trial reportClinical nephrology2012

The effect of combined calcium and cholecalciferol supplementation on bone mineral density in elderly women with moderate chronic kidney disease.

Cortney Bosworth, Ian H de Boer, Giovanni Targher, Jessica Kendrick, Gerard Smits, Michel Chonchol

Open access · greenAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Clinical nephrology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
0.5field-weighted citation impact, top 34% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Calcium plus vitamin D supplementation and risk of fractures: an updated meta-analysis from the National Osteoporosis Foundation.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Pooled it
  3. Pooled it
  4. Review
  5. The role of nutritional vitamin D in chronic kidney disease-mineral and bone disorder in children and adults with chronic kidney disease, on dialysis, and after kidney transplantation-a European consensus statement.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Impaired vitamin D metabolism in CKD.Seminars in nephrology · 2013
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Cortney BosworthUniversity of Washington, Division of Nephrology and Kidney Research Institute, Seattle, WA, USA.
Ian H de Boer
Giovanni Targher
Jessica Kendrick
Gerard Smits
Michel Chonchol
University of Washington · US

Funding

Vitamin D and Arterial Function in Patients with Chronic Kidney DiseaseK23DK087859 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI KENDRICK, JESSICA B · 2011 to 2015
$784k
NIDDK NIH HHS K23 DK087859
6 · The paper itself

Abstract

aimsTo examine the effect of combined calcium and vitamin D3 supplementation on bone mineral density (BMD) inpatients with chronic kidney disease (CKD).

methodsWe performed a post-hoc analysis of the DECALYOS II, a 2-year randomized, double-blind, placebo-controlled study of 610 women randomized to: calcium-vitamin D3 fixed combination, calcium plus vitamin D3 separate combination, or placebo. Both active treatment groups received the same daily amount of calcium (1,200 mg) and vitamin D3 (800 IU). BMD of the distal radius was measured by single X-ray absorptiometry at baseline, 12 and 24 months.

resultsAt baseline 47.2%, 36.4% and 16.4% of the study population had an eGFR ≥ 60, 45 -59, and < 45 ml/min/1.73 m2, respectively. Both active regimens vs. placebo markedly increased serum 25-hydroxyvitamin D levels from baseline in all eGFR groups (p 0.22 for all time points).

conclusionCombined calcium and vitamin D3 supplementation was effective in reducing rate of BMD loss in women with moderate CKD.

Indexed as

Dietary SupplementsAbsorptiometry, PhotonAge FactorsAnalysis of VarianceBiomarkersBone DensityCalciumChi-Square DistributionCholecalciferolChronic DiseaseDouble-Blind MethodDrug CombinationsDrug Therapy, CombinationFemaleGlomerular Filtration RateHumans25-hydroxyvitamin DBiomarkersCalciumCholecalciferolDrug CombinationsPlacebosVitamin D

Identifiers

PMID22551881
PMCPMC4030712
OpenAlexW2071448104

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.