Evidence map›Paper›PMID 33201249›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2021

Vitamin D status and complications, readmissions, and mortality after hip fracture.

F Ingstad, L B Solberg, L Nordsletten, P M Thorsby, I Hestnes, F Frihagen

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In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  4. Review
  5. 25-Hydroxyvitamin D Levels, Free Serum Calcium, Glomerular Filtration Rate, Albumin, and Femoral Fracture Elderly Patient Mortality.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
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  12. Vitamin D deficiency in hip fracture patients is associated with an increased mortality risk.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
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  13. Observational
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  20. Geriatric nutritional risk index as the prognostic factor in older patients with fragility hip fractures.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
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 3 institutions in 2 countries.

F IngstadDivision of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway. frida-2112@hotmail.com.ORCID http://orcid.org/0000-0003-0964-3320
L B SolbergDivision of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.
L NordslettenDivision of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.
P M ThorsbyHormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway.
I HestnesDivision of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.
F FrihagenInstitute of Clinical Medicine, University of Oslo, Oslo, Norway.
Oslo University Hospital · NOUniversity of Copenhagen · DKUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low vitamin D in patients with hip fracture is common. In the present study, 407 of 872 (47%) patients had serum calcidiol less than 50 nmol/L. Patients with low vitamin D had more delirium, more new hip fractures, and more medical readmissions, but not more orthopedic complications after 1 year.

introductionWe wanted to study the relation between vitamin D level and postoperative orthopedic and medical complications in patients with hip fracture. In addition, we investigated the effect of giving a single-dose cholecalciferol 100.000 IU.

methodsData were taken from the local hip fracture register. Logistic regression analyses including vitamin D level and potentially confounding variables were performed for complications and readmissions.

resultsA total of 407 (47%) of 872 included hip fractures had low vitamin D at baseline. A total of 155 (18%) developed delirium, and the risk was higher in vitamin D-deficient patients (odds ratio (OR) 1.48, 95% confidence interval (CI) 1.04 to 2.12; p = 0.03). A total of 261 (30%) were readmitted for non-hip-related conditions. Low vitamin D was associated with a higher risk of medical readmissions within 30 days (OR 1.64 (1.03 to 2.61); p = 0.036) and 12 weeks (OR 1.47 (95% CI 1.02 to 2.12); p = 0.039). There was a higher risk of a new hip fracture (OR 2.84 (95% CI 1.15 to 7.03) p = 0.024) in vitamin D-deficient patients. A total of 105 (12%) developed at least one orthopedic complication, with no correlation to baseline vitamin D. Among vitamin D-deficient patients, those receiving a single-dose of 100.000 IU cholecalciferol had fewer orthopedic complications (OR 0.32 (95% CI 0.11 to 0.97) p = 0.044) the first 30 days after surgery.

conclusionLow vitamin D at admission for hip fracture increased the risk of delirium, a new hip fracture, and medical readmissions, but not orthopedic complications. The role of vitamin D supplementation to prevent orthopedic complications requires further study.

Indexed as

Hip FracturesVitamin D DeficiencyCholecalciferolHumansPatient ReadmissionVitamin DVitaminsCholecalciferolVitamin DVitaminsDeliriumFracture healingHip fracturePost-fracture complicationsPreventionVitamin D deficiency

Identifiers

PMID33201249
OpenAlexW3102867035

What OpenQuestion holds

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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.