Evidence map›Paper›PMID 33907284›Full record

ArticleScientific reports2021

Prognostic classification in acute exacerbation of idiopathic pulmonary fibrosis: a multicentre retrospective cohort study.

Takahito Suzuki, Hironao Hozumi, Koichi Miyashita, Masato Kono, Yuzo Suzuki, Masato Karayama, Kazuki Furuhashi, Hirotsugu Hasegawa, Tomoyuki Fujisawa, Noriyuki Enomoto and 5 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 9% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Acute exacerbation in fibrotic interstitial lung disease: an international working group report.American journal of respiratory and critical care medicine · 2026
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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

15 authors at 3 institutions in 1 country.

Takahito SuzukiSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Hironao HozumiSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan. hozumi@hama-med.ac.jp.ORCID 0000-0001-5439-1543
Koichi MiyashitaSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Masato KonoDepartment of Respiratory Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan.
Yuzo SuzukiSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Masato KarayamaSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Kazuki FuruhashiSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Hirotsugu HasegawaDepartment of Respiratory Medicine, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
Tomoyuki FujisawaSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Noriyuki EnomotoSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Yutaro NakamuraSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Naoki InuiSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Koshi YokomuraDepartment of Respiratory Medicine, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
Hidenori NakamuraDepartment of Respiratory Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan.
Takafumi SudaSecond Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashiku, Hamamatsu, 431-3192, Japan.
Hamamatsu University School of Medicine · JPSeirei Hamamatsu General Hospital · JPSeirei Mikatabara General Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acute exacerbation (AE) in idiopathic pulmonary fibrosis (IPF) is a major prognostic determinant. However, evidence for its prognostic strength is mainly based on the results of small cohort studies with statistical limitations. This retrospective study, which included 108 patients with a first episode of AE-IPF, aimed to identify prognostic factors and to develop prognostic classification models. Multivariate Cox regression analysis revealed that a lower percent-predicted forced vital capacity within 12 months before AE onset (baseline %FVC) and a lower PaO

Indexed as

AgedFemaleHumansIdiopathic Pulmonary FibrosisMalePrognosisProportional Hazards ModelsRetrospective StudiesSurvival Rate

Identifiers

PMID33907284
PMCPMC8079397
OpenAlexW3158427427

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.