Evidence map›Paper›PMID 28919734›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2017

Usefulness of the desaturation-distance ratio from the six-minute walk test for patients with COPD.

Yukari Fujimoto, Yutaro Oki, Masahiro Kaneko, Hideki Sakai, Shogo Misu, Takumi Yamaguchi, Yuji Mitani, Hisafumi Yasuda, Akira Ishikawa

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact, top 81% 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, 16 citations in OpenAlex.

  1. Trial
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  10. Assessment of exertional capacity using the six-minute step test in COVID-19 survivors six months after hospitalization: a prospective observational study in Paraíba, Brazil.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    Observational
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

9 authors at 2 institutions in 1 country.

Yukari FujimotoDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Yutaro OkiDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Masahiro KanekoDepartment of Respiratory Medicine, Kobe City Medical Center West Hospital, Kobe, Hyogo, Japan.
Hideki SakaiDepartment of Rehabilitation, Kobe City Medical Center West Hospital, Kobe, Hyogo, Japan.
Shogo MisuDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Takumi YamaguchiDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Yuji MitaniDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Hisafumi YasudaDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Akira IshikawaDepartment of Community Health Sciences, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan.
Hyogo University of Health Sciences · JPKobe City Medical Center West Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA straightforward, noninvasive method is needed to assess emphysema and pulmonary hypertension (PH) in COPD patients. The desaturation-distance ratio (DDR) is an index derived from the distance traveled and level of desaturation during a six-minute walk test (6MWT); it has previously been shown to be associated with percentage of forced expiratory volume in the first second of expiration (%FEV PATIENTS AND

methodsWe collected the following data for 74 stable COPD outpatients: lung function tests (%FEV

resultsDDR correlated significantly with %FEV

conclusionThe results suggest that DDR is a good index of emphysema and PH in COPD patients. The 6MWT is widely used to assess COPD, and DDR could help with the early diagnosis of COPD.

Indexed as

Blood Gas AnalysisExercise ToleranceWalkingWalk TestAdultAgedArea Under CurveBiomarkersEarly DiagnosisFemaleForced Expiratory VolumeHumansHypertension, PulmonaryLungMaleMiddle AgedBiomarkersOxygenCOPDdesaturation–distance ratioemphysemaexercise-induced oxygen desaturationpulmonary hypertensionsix-minute walk test

Identifiers

PMID28919734
PMCPMC5593400
OpenAlexW2753587526

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.