Evidence map›Paper›PMID 30746199›Full record

ArticleJournal of thoracic disease2018

A specific subtype of chronic obstructive pulmonary disease classified by forced vital capacity.

Chunlan Chen, Ying He, Qiulin Chen, Dongying Zhang, Yuandi Wang, Yanling Tang, Ying Fang, Nanshan Zhong, Wenhua Jian, Jinping Zheng

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of thoracic disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.4field-weighted citation impact, top 33% 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

0 citing papers in PubMed, 3 citations in OpenAlex.

No citing paper in PubMed yet.

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

10 authors at 4 institutions in 1 country.

Chunlan ChenState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Ying HeDepartment of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China.
Qiulin ChenState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Dongying ZhangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Yuandi WangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Yanling TangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Ying FangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Nanshan ZhongState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Wenhua JianState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Jinping ZhengState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
Guangzhou Medical University · CNState Key Laboratory of Respiratory Disease · CNCentral South University · CNFirst Affiliated Hospital of Guangzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundForced expiratory volume in one second (FEV

methodsCOPD patients were classified into three groups by FVC: (I) large consistent FVC (LC-FVC): before bronchodilator (BBD) and after bronchodilator (ABD) FVC ≥80%pred; (II) inconsistent FVC (I-FVC): BBD FVC <80%pred, while ABD FVC ≥80%pred; (III) small consistent FVC (SC-FVC): BBD and ABD FVC <80%pred. The characteristics of pulmonary function and clinical features of 1,329 retrospective patients and 403 prospective patients were analyzed in different FVC subgroups.

resultsThe percentages of LC-FVC, I-FVC and SC-FVC were 25.4%, 13.8% and 60.9%, respectively in the retrospective cohort, and were 34.0%, 15.6%, 50.4%, respectively in the prospective cohort. For the 1,329 retrospective patients, I-FVC showed the best responsiveness to bronchodilator when compared with those of LC-FVC and SC-FVC, no matter evaluated by FEV

conclusionsCOPD patients classified by BBD and ABD FVC showed obviously different clinical characteristics, which could assist in distinguishing I-FVC patients who may benefit most from bronchodilators.

Indexed as

bronchodilator responsivenessGlobal initiative for chronic obstructive lung disease (GOLD)lung volumestreatment

Identifiers

PMID30746199
PMCPMC6344753
OpenAlexW2904429087

What OpenQuestion holds

Textmetadata
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.