Evidence map›Paper›PMID 28087547›Full record

ArticleBMJ open2017

Risk of pneumonia in patients with isolated minor rib fractures: a nationwide cohort study.

Sai-Wai Ho, Ying-Hock Teng, Shun-Fa Yang, Han-Wei Yeh, Yu-Hsun Wang, Ming-Chih Chou, Chao-Bin Yeh

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.5field-weighted citation impact, top 8% 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, 35 citations in OpenAlex.

  1. Article
  2. Post-discharge complications and follow-up timing after hospitalization for traumatic rib fractures.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
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  14. Pneumonia in Trauma Patients.Current trauma reports · 2017
    Review
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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

7 authors at 3 institutions in 1 country.

Sai-Wai HoInstitute of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Ying-Hock TengDepartment of Emergency Medicine, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Shun-Fa YangInstitute of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Han-Wei YehSchool of Medicine, Chang Gung University, Taoyuan City, Taiwan.
Yu-Hsun WangDepartment of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan.
Ming-Chih ChouInstitute of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Chao-Bin YehDepartment of Emergency Medicine, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
Chung Shan Medical University Hospital · TWChang Gung University · TWChung Shan Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIsolated minor rib fractures (IMRFs) after blunt chest traumas are commonly observed in emergency departments. However, the relationship between IMRFs and subsequent pneumonia remains controversial. This nationwide cohort study investigated the association between IMRFs and the risk of pneumonia in patients with blunt chest traumas.

designNationwide population-based cohort study.

settingPatients with IMRFs were identified between 2010 and 2011 from the Taiwan National Health Insurance Research Database.

participantsNon-traumatic patients were matched through 1:8 propensity-score matching according to age, sex, and comorbidities (namely diabetes, hypertension, cardiovascular disease, asthma and chronic obstructive pulmonary disease (COPD)) with the comparison cohort. We estimated the adjusted HRs (aHRs) by using the Cox proportional hazard model. A total of 709 patients with IMRFs and 5672 non-traumatic patients were included.

main outcome measureThe primary end point was the occurrence of pneumonia within 30 days.

resultsThe incidence of pneumonia following IMRFs was 1.6% (11/709). The aHR for the risk of pneumonia after IMRFs was 8.94 (95% CI=3.79 to 21.09, p<0.001). Furthermore, old age (≥65 years; aHR=5.60, 95% CI 1.97 to 15.89, p<0.001) and COPD (aHR=5.41, 95% CI 1.02 to 3.59, p<0.001) were risk factors for pneumonia following IMRFs. In the IMRF group, presence of single or two isolated rib fractures was associated with an increased risk of pneumonia with aHRs of 3.97 (95% CI 1.09 to 14.44, p<0.001) and 17.13 (95% CI 6.66 to 44.04, p<0.001), respectively.

conclusionsAlthough the incidence of pneumonia following IMRFs is low, patients with two isolated rib fractures were particularly susceptible to pneumonia. Physicians should focus on this complication, particularly in elderly patients and those with COPD.

Indexed as

AdultAgedCase-Control StudiesComorbidityCross-Sectional StudiesDatabases, FactualFemaleHumansIncidenceMaleMiddle AgedPneumoniaPropensity ScoreProportional Hazards ModelsRetrospective StudiesRib Fracturesblunt chest traumaIsolated minor rib fracturesnationwide cohort studypneumonia

Identifiers

PMID28087547
PMCPMC5253567
OpenAlexW2574646135

What OpenQuestion holds

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LicenceCC BY-NC
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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.