Evidence map›Paper›PMID 33830350›Full record

ArticleJournal of bone and mineral metabolism2021

Association of hemoglobin level with fracture: a nationwide cohort study.

Ji Soo Kim, Seulggie Choi, Gyeongsil Lee, Yoosun Cho, Sang Min Park

Abstract read
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In one paragraph

Article in Journal of bone and mineral metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Increased fracture risk associated with iron-deficiency anemia: a population-based propensity score matched cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
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  5. Sex differences in hemoglobin levels and five-year refracture risk in patients with osteoporotic fractures: a retrospective cohort analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2024
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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.

Ji Soo KimDepartment of Family Medicine, Seoul National University Hospital, Seoul, South Korea.
Seulggie ChoiDepartment of Biomedical Sciences and Family Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, South Korea.
Gyeongsil LeeDepartment of Family Medicine, Seoul National University Hospital, Seoul, South Korea.
Yoosun ChoDepartment of Family Medicine, Seoul National University Hospital, Seoul, South Korea.
Sang Min ParkDepartment of Biomedical Sciences and Family Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, South Korea. smpark.snuh@gmail.com.
Seoul National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe association between hemoglobin (Hb) level including anemia and fracture has not been studied thoroughly. MATERIALS AND

methods197, 187 adults ≥ 50 years from the National Health Insurance Service of Korea were studied. Hb was determined during health screening examinations in 2004 or 2005. From 1 January 2006, participants were followed up for fracture until 31 December 2013. Hb levels (g/dL) were categorized into five groups, with normal hemoglobin levels subdivided into three groups (low normal, normal, and high normal Hb): < 13, ≥ 13 to < 14, ≥ 14 to < 16, ≥ 16 to < 17, 17 for men and < 12, ≥ 12 to < 13, ≥ 13 to < 14, ≥ 14 to < 16, ≥ 16 for women. Anemia was defined as Hb < 13 g/dL and < 12 g/dL for men and women, respectively. Cox proportional hazards regression was used to determine the adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) for fracture according to Hb.

resultsCompared to individuals with normal Hb, those with anemia and low normal Hb were associated with significantly increased risk of fracture. In women, those with anemia had a higher risk for any (aHR 1.11, 95% CI 1.05-1.17), hip (aHR 1.27, 95% CI 1.01-1.59), and radius fracture (aHR 1.15, 95% CI 1.05-1.25). In men, those with anemia had a higher risk for any (aHR 1.37, 95% CI 1.23-1.51), vertebral (aHR 1.33, 95% CI 1.15-1.53), and hip fracture (aHR 1.64, 95% CI 1.30-2.08). This risk-enhancing association was preserved among various subgroups.

conclusionAmong adults ≥ 50 years, anemia and low normal Hb are risk factors for fracture.

Indexed as

AnemiaHip FracturesAdultCohort StudiesFemaleHemoglobinsHumansMaleRisk FactorsHemoglobinsAnemiaFractureHemoglobin levelOsteoporosis

Identifiers

PMID33830350
OpenAlexW3147880118

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.