Evidence map›Paper›PMID 34131304›Full record

SynthesisEuropean journal of clinical nutrition2022

Dietary calcium intake and change in bone mineral density in older adults: a systematic review of longitudinal cohort studies.

Sarah M Bristow, Mark J Bolland, Greg D Gamble, William Leung, Ian R Reid

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  5. Article
  6. Review
  7. Article
  8. Article
  9. Mineral Supplements in Ageing.Sub-cellular biochemistry · 2024
    Review
  10. Article
  11. Article
  12. Comment on: Abdalbary et al. Impact of urinary calcium excretion on kidney, bone, and cardiovascular systems in patients with bone biopsy proven osteoporosis: a longitudinal long-term follow-up study. Osteoporos Int. 2023 Apr;34(4):763-774.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2023
    Article
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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

5 authors at 1 institution in 1 country.

Sarah M BristowDepartment of Medicine, University of Auckland, Auckland, New Zealand.
Mark J BollandDepartment of Medicine, University of Auckland, Auckland, New Zealand.
Greg D GambleDepartment of Medicine, University of Auckland, Auckland, New Zealand.ORCID http://orcid.org/0000-0003-0412-3203
William LeungDepartment of Medicine, University of Auckland, Auckland, New Zealand.
Ian R ReidDepartment of Medicine, University of Auckland, Auckland, New Zealand. i.reid@auckland.ac.nz.ORCID http://orcid.org/0000-0001-6021-5458
University of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many older adults do not achieve recommended intakes of calcium and there is some concern over the potential impact of this on bone health. The objective of this review was to examine evidence from cohort studies on the relationship between calcium intake and change in bone mineral density (BMD) in older adults, something not undertaken in the last two decades. Data sources included Ovid Medline, Embase, and PubMed and references from retrieved reviews and articles. The final search was performed in February 2021. We included cohort studies of calcium intake in participants aged >50 years with change in BMD over ≥1 year as an outcome. We identified 23 studies of women and 7 of men. Most studies found no association between calcium intake and change in BMD in women (71%) or men (71%). Among women, five studies reported high rates (>30% of participants) of hormone treatment or osteoporosis therapy (HT/OT) use; 80% of these studies reported a positive association between calcium intake and change in BMD, compared with 10% of studies in which HT/OT use was low. No study in women in which the mean age was >60 years reported a positive association between calcium intake and change in BMD. We conclude that calcium intake across the ranges consumed in these studies (mean intake in all but one study >500 mg/day) is not an important determinant of bone loss, particularly among women >60 years. The positive findings in studies with high rates of HT/OT use are likely to arise from confounding as a result of co-administration of calcium supplements with these medications.

Indexed as

Bone DensityOsteoporosisAgedCalcium, DietaryCohort StudiesFemaleHumansLongitudinal StudiesMaleMiddle AgedCalcium, Dietary

Identifiers

PMID34131304
OpenAlexW3167093487

What OpenQuestion holds

Textmetadata
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.