Evidence map›Paper›PMID 40001053›Full record

ArticleBMC cancer2025

Risk factors for postoperative pneumonia in older adults aged ≥ 80 years with gastric cancer.

Shunji Endo, Masaharu Higashida, Yoshinori Fujiwara, Kei Furuya, Shuya Yano, Toshimasa Okada, Kazuhiko Yoshimatsu, Tomio Ueno

Abstract read
In one paragraph

Article in BMC cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

  1. 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

8 authors.

Shunji EndoDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan. endo-s@med.kawasaki-m.ac.jp.
Masaharu HigashidaDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Yoshinori FujiwaraDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Kei FuruyaDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Shuya YanoDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Toshimasa OkadaDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Kazuhiko YoshimatsuDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.
Tomio UenoDepartment of Digestive Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Okayama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn Japan, the proportion of elderly gastric cancer patients is increasing. Although surgery in patients aged ≥ 80 years is relatively safe, postoperative pneumonia often occurs, reducing quality of life and being fatal. We retrospectively investigated the risk factors for pneumonia after gastrectomy in elderly patients at our hospital.

methodsBetween 2010 and 2019, 113 patients aged ≥ 80 years underwent gastrectomy for gastric cancer at our hospital. Of these, 88 patients were retrospectively investigated, excluding 25 patients who did not receive sufficient postoperative follow-up. The diagnosis of pneumonia was based on chest CT findings. Univariate and multivariate analyzes for risk factors of pneumonia were performed using the Cox proportional hazards model.

resultsThe patients were aged 80-93 years (median 83 years) and consisted of 63 males and 25 females. The surgical procedures included distal gastrectomy in 54, total gastrectomy in 25, proximal gastrectomy in two, and local resection in seven. Postoperative pneumonia was observed in 38 patients. Seventeen of them died from pneumonia. The time to onset of pneumonia was 0.2-144.6 months (median 12.0 months), and the median observation period for patients without pneumonia was 38.8 months. Multivariate analysis revealed that age, Geriatric Nutritional Risk Index, respiratory history, and extent of gastrectomy (total vs. distal: hazard ratio 3.91, 95% confidence interval 1.69-9.02) were independent pneumonia factors.

conclusionsIn patients aged ≥ 80 years, age, low nutritional status, respiratory history, and total gastrectomy were risk factors for postoperative pneumonia.

Indexed as

GastrectomyPneumoniaPostoperative ComplicationsStomach NeoplasmsAged, 80 and overAge FactorsFemaleHumansJapanMaleProportional Hazards ModelsRetrospective StudiesRisk FactorsAged 80 years and overGastrectomyPneumoniaStomach neoplasms

Identifiers

PMID40001053
PMCPMC11854380

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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.