Evidence map›Paper›PMID 41060231›Full record

ArticleJournal of hospital medicine2026

Mortality after broad- versus narrow-spectrum antibiotic treatment for patients with nursing and healthcare-associated pneumonia: A nationwide retrospective cohort study.

Jumpei Taniguchi, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga

Abstract readComparative Study
In one paragraph

Article in Journal of hospital medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

5 authors.

Jumpei TaniguchiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.ORCID https://orcid.org/0000-0003-2480-9018
Shotaro AsoDepartment of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.ORCID https://orcid.org/0000-0002-7804-2433
Hiroki MatsuiDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.ORCID https://orcid.org/0000-0003-0004-4743
Kiyohide FushimiDepartment of Health Policy and Informatics, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Hideo YasunagaDepartment of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.

Funding

Ministry of Health, Labour and Welfare, Japan 23AA2003Ministry of Health, Labour and Welfare, Japan 24AA2006
6 · The paper itself

Abstract

backgroundNursing and healthcare-associated pneumonia (NHCAP) is defined as pneumonia occurring in individuals with frequent healthcare contact, such as residents of care facilities or patients with impaired activities of daily living. The effectiveness of broad-spectrum antibiotics in treating NHCAP remains unclear.

objectiveTo compare clinical outcomes between broad- and narrow-spectrum antibiotic treatments in patients with NHCAP using a nationwide inpatient database.

methodsPatients diagnosed with NHCAP between April 2014 and March 2022 were identified from the Diagnosis Procedure Combination inpatient database in Japan. Patients were categorised into those receiving broad-spectrum antibiotics (antipseudomonal penicillins, antipseudomonal cephalosporins, and carbapenems) and those receiving narrow-spectrum antibiotics (third-generation cephalosporins and penicillin plus β-lactamase inhibitor combinations). Instrumental variable analysis using hospital preference for broad-spectrum antibiotics was conducted to compare 30-day in-hospital mortality. A subgroup analysis was performed for patients with ≥3 risk factors for antibiotic-resistant pathogens.

resultsAmong 828,283 eligible patients, 24.8% received broad-spectrum antibiotics, while 75.2% received narrow-spectrum antibiotics. Instrumental variable analysis showed that broad-spectrum antibiotic use was not associated with 30-day in-hospital mortality (10.0% vs. 10.0%; risk difference, 0.0%; 95% confidence interval, -0.7% to 0.8%) compared with narrow-spectrum antibiotic use. The subgroup analysis of patients with three or more risk factors for antibiotic-resistant pathogens, broad-spectrum antibiotic use was also not associated with 30-day mortality (10.5% vs. 11.0%; risk difference, -0.6%; 95% confidence interval, -2.5% to 1.3%).

conclusionsBroad-spectrum antibiotic use was not associated with short-term in-hospital mortality in patients with NHCAP, underscoring the importance of individualized antibiotic selection based on patient-specific risk factors.

Indexed as

Anti-Bacterial AgentsHealthcare-Associated PneumoniaHospital MortalityAgedAged, 80 and overFemaleHumansJapanMaleMiddle AgedRetrospective StudiesAnti-Bacterial Agents

Identifiers

PMID41060231
PMCPMC13136921

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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.