Evidence map›Paper›PMID 33730786›Full record

ArticleJournal of bone metabolism2021

Vitamin D Deficiency and Sarcopenia in Hip Fracture Patients.

Hong Seok Kim, Geun Jang, Jung Wee Park, Young-Kyun Lee, Kyung-Hoi Koo

Open access · hybridAbstract read
In one paragraph

Article in Journal of bone metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

14 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. 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
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Sarcopenia: an unsolved problem after hip fracture.Journal of bone and mineral metabolism · 2022
    Article
  13. Article
  14. 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

5 authors at 2 institutions in 1 country.

Hong Seok KimDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
Geun JangDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
Jung Wee ParkDepartment of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea.
Young-Kyun LeeDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
Kyung-Hoi KooDepartment of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
Seoul National University Bundang Hospital · KRChung-Ang University · KR

Funding

Korean Society for Bone and Mineral Research
6 · The paper itself

Abstract

backgroundVitamin D plays a critical role in the proliferation and differentiation of skeletal muscle and bone metabolism. We compared the prevalence of vitamin D deficiency in elderly patients undergoing hip fracture surgery (HFS) with those undergoing elective primary total hip arthroplasty (THA). We also evaluated the association between vitamin D deficiency and sarcopenia.

methodsThis prospective study included 70 patients in the HFS group, and 100 patients in the elective THA group. The HFS group included 42 women, while the elective THA group included 74 women. The mean age in the HFS and elective THA groups was 79.8 and 75.4 years, respectively, and the mean preoperative Koval score was 2.1 and 2.3, respectively. Serum 25-hydroxy-vitamin D3 levels were measured by I125 radioimmunoassay. Bone mineral density and appendicular skeletal muscle mass (ASM) were measured using dual X-ray absorptiometry. Sarcopenia index was calculated by dividing ASM (kg) by the body mass index (kg/m2). Sarcopenia was diagnosed when the sarcopenia index was <0.789 in men and <0.512 in women.

resultsSerum vitamin D levels were lower, and the percentages of patients with vitamin D insufficiency and deficiency were higher in the HFS group than in the elective THA group. In the HFS group, the prevalence of sarcopenia was higher in men (57%, 16/28) than in women (29%, 12/42; P=0.025).

conclusionsVitamin D deficiency was more prevalent in patients undergoing HFS than in patients undergoing elective THA. Among patients undergoing HFS, vitamin D deficiency was more prevalent in sarcopenic than in non-sarcopenic patients.

Indexed as

Hip fracturesOsteoporosisSarcopeniaVitamin D

Identifiers

PMID33730786
PMCPMC7973399
OpenAlexW3134366296

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.