Evidence map›Paper›PMID 22561351›Full record

ArticleBMJ open2012

Risk factors affecting inhospital mortality after hip fracture: retrospective analysis using the Japanese Diagnosis Procedure Combination Database.

Naoko Shoda, Hideo Yasunaga, Hiromasa Horiguchi, Shinya Matsuda, Kazuhiko Ohe, Yuho Kadono, Sakae Tanaka

Abstract read
In one paragraph

Article in BMJ open, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Inpatient mortality following hip fracture in the United States: an updated analysis of over one million cases.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
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  8. Observational
  9. Review
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  11. Observational
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  14. Observational
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  18. Motor disability, clinical complications, quality of life, and survival in patients with cancer: a plausible scenario.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2014
    Article
  19. Accidental falls in home care hematological patients.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2013
    Article
  20. 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

7 authors.

Naoko ShodaDepartment of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Hideo Yasunaga
Hiromasa Horiguchi
Shinya Matsuda
Kazuhiko Ohe
Yuho Kadono
Sakae Tanaka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify risk factors for inhospital mortality in patients with hip fractures using the Japanese Diagnosis Procedure Combination (DPC) nationwide administrative claims database.

designRetrospective observational study.

settingHospitals adopting the DPC system during 2007-2009.

participantsThe authors analysed a total of 80 800 eligible patients aged ≥60 years with a single hip fracture (International Classification of Diseases, 10th Revision codes: S72.0 and S72.1). The DPC database includes patients treated between July and December each year.

main outcome measuresInhospital mortality after hip fracture.

resultsThe overall inhospital mortality rate after hip fractures was 3.3%. Multivariate analysis indicated that inhospital mortality was significantly associated with male gender (OR 2.12, 95% CI 1.94 to 2.31), advancing age and number of comorbidities. Significantly higher mortality was observed in those treated conservatively (OR 4.25, 95% CI 3.92 to 4.61). Surgical delays of 5 days or more were significantly associated with higher rates of inhospital mortality (OR 1.34, 95% CI 1.20 to 1.50).

conclusionsIn patients with hip fractures, male gender, advancing age, high number of comorbidities, conservative treatment and the surgical delay of 5 days or more were associated with higher rates of inhospital mortality.

Identifiers

PMID22561351
PMCPMC3346946

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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.