Evidence map›Paper›PMID 29792181›Full record

ArticleBMC pulmonary medicine2018

Six underlying health conditions strongly influence mortality based on pneumonia severity in an ageing population of Japan: a prospective cohort study.

Sugihiro Hamaguchi, Motoi Suzuki, Kota Sasaki, Masahiko Abe, Takao Wakabayashi, Eiichiro Sando, Makito Yaegashi, Shimpei Morimoto, Norichika Asoh, Naohisa Hamashige and 4 more

Abstract read
In one paragraph

Article in BMC pulmonary medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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

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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

14 authors.

Sugihiro HamaguchiDepartment of General Internal Medicine, Fukushima Medical University, Fukushima, Japan.
Motoi SuzukiDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
Kota SasakiDepartment of Laboratory Medicine, Ebetsu City Hospital, Ebetsu, Japan.
Masahiko AbeDepartment of General Internal Medicine, Ebetsu City Hospital, Ebetsu, Japan.
Takao WakabayashiDepartment of General Medicine, Sapporo Hokushin Hospital, Sapporo, Japan.
Eiichiro SandoDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
Makito YaegashiDepartment of General Internal Medicine, Kameda Medical Centre, Kamogawa, Japan.
Shimpei MorimotoInnovation platform & office for precision medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Norichika AsohDepartment of Internal Medicine, Juzenkai Hospital, Nagasaki, Japan.
Naohisa HamashigeDepartment of Internal Medicine, Chikamori Hospital, Kochi, Japan.
Masahiro AoshimaDepartment of Pulmonology, Kameda Medical Centre, Kamogawa, Japan.
Koya AriyoshiDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.
Konosuke MorimotoDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan. komorimo@nagasaki-u.ac.jp.ORCID http://orcid.org/0000-0003-2912-9919
Adult Pneumonia Study Group – Japan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMortality prediction of pneumonia by severity scores in patients with multiple underlying health conditions has not fully been investigated. This prospective cohort study is to identify mortality-associated underlying health conditions and to analyse their influence on severity-based pneumonia mortality prediction.

methodsAdult patients with community-acquired pneumonia or healthcare-associated pneumonia (HCAP) who visited four community hospitals between September 2011 and January 2013 were enrolled. Candidate underlying health conditions, including demographic and clinical characteristics, were incorporated into the logistic regression models, along with CURB (confusion, elevated urea nitrogen, tachypnoea, and hypotension) score as a measure of disease severity. The areas under the receiver operating characteristic curves (AUROC) of the predictive index based on significant underlying health conditions was compared to that of CURB65 (CURB and age ≥ 65) score or Pneumonia severity index (PSI). Mortality association between disease severity and the number of underlying health conditions was analysed.

resultsIn total 1772 patients were eligible for analysis, of which 140 (7.9%) died within 30 days. Six underlying health conditions were independently associated: home care (adjusted odds ratio, 5.84; 95% confidence interval, CI, 2.28-14.99), recent hospitalization (2.21; 1.36-3.60), age ≥ 85 years (2.15; 1.08-4.28), low body mass index (1.99, 1.25-3.16), neoplastic disease (1.82; 1.17-2.85), and male gender (1.78; 1.16-2.75). The predictive index based on these conditions alone had a significantly or marginally higher AUROC than that based on CURB65 score (0.78 vs 0.66, p = 0.02) or PSI (0.78 vs 0.71, p = 0.05), respectively. Compared to this index, the AUROC of the total score consisting of six underlying health conditions and CURB score (range 0-10) did not improve mortality predictions (p = 0.3). In patients with one or less underlying health conditions, the mortality was discretely associated with severe pneumonia (CURB65 ≥ 3) (risk ratio: 7.24, 95%CI: 3.08-25.13), whereas in patients with 2 or more underlying health conditions, the mortality association with severe pneumonia was not detected (risk ratio: 1.53, 95% CI: 0.94-2.50).

conclusionsMortality prediction based on pneumonia severity scores is highly influenced by the accumulating number of underlying health conditions in an ageing society. The validation using a different cohort is necessary to generalise the conclusion.

Indexed as

PneumoniaAgedAged, 80 and overArea Under CurveCommunity-Acquired InfectionsFemaleHealthcare-Associated PneumoniaHealth Status DisparitiesHumansJapanMaleMortalityPredictive Value of TestsPrognosisResearch DesignRisk AssessmentAdult pneumoniaAgeing populationMortality predictionUnderlying health conditions

Identifiers

PMID29792181
PMCPMC5967104

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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.