Evidence map›Paper›PMID 33247005›Full record

ArticleBMJ open2020

Study to evaluate the effectiveness and cost-effectiveness of different screening strategies for identifying undiagnosed COPD among residents (≥40 years) in four cities in China: protocol for a multicentre cross-sectional study on behalf of the Breathe Well group.

Zihan Pan, Andrew P Dickens, Chunhua Chi, Xia Kong, Alexandra Enocson, Peymane Adab, Kar Keung Cheng, Alice J Sitch, Sue Jowett, Rachel Jordan and 1 more

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 34% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

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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

11 authors at 2 institutions in 2 countries.

Zihan PanDepartment of General Practice, Peking University First Hospital, Beijing, China.ORCID 0000-0003-4502-1107
Andrew P DickensInstitute of Applied Health Research, University of Birmingham, Birmingham, UK chichunhua2012@qq.com A.P.Dickens@bham.ac.uk.ORCID 0000-0002-7591-8129
Chunhua ChiDepartment of General Practice, Peking University First Hospital, Beijing, China chichunhua2012@qq.com A.P.Dickens@bham.ac.uk.
Xia KongDepartment of General Practice, Peking University First Hospital, Beijing, China.
Alexandra EnocsonInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Peymane AdabInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Kar Keung ChengInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Alice J SitchInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Sue JowettInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Rachel JordanInstitute of Applied Health Research, University of Birmingham, Birmingham, UK.
Breathe Well Group
University of Birmingham · GBPeking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe latest chronic obstructive pulmonary disease (COPD) epidemiology survey in China estimated that there were 99 million potential COPD patients in the country, the majority of whom are undiagnosed. Screening for COPD in primary care settings is of vital importance for China, but it is not known which strategy would be the most suitable for adoption in primary care. Studies have been conducted to test the accuracy of questionnaires, expiratory peak flow meters and microspirometers to screen for COPD, but no study has directly evaluated and compared the effectiveness and cost-effectiveness of these methods in the Chinese setting. METHODS AND ANALYSIS: We present the protocol for a multicentre cross-sectional study, to be conducted in eight community hospitals from four cities among Chinese adults aged 40 years or older to investigate the effectiveness and cost-effectiveness of different case-finding methods for COPD, and determine the test performance of individual and combinations of screening tests and strategies in comparison with quality diagnostic spirometry. Index tests are screening questionnaires (COPD Diagnostic Questionnaire (CDQ), COPD Assessment in Primary Care To Identify Undiagnosed Respiratory Disease and Exacerbation Risk Questionnaire (CAPTURE), symptom-based questionnaire, COPD Screening Questionnaire (COPD-SQ)), microspirometer and peak flow. Each participant will complete all of these tests in one assessment. The primary analysis will compare the performance of a screening questionnaire with a handheld device. Secondary analyses will include the comparative performance of each index test, as well as a comparison of strategies where we use a screening questionnaire and a handheld device. Approximately 2000 participants will be recruited over 9 to 12 months. ETHICS AND DISSEMINATION: The study has been approved by Peking University Hospital and University of Birmingham. All study participants will provide written informed consent. Study results will be published in appropriate journal and presented at national and international conferences, as well as relevant social media and various community/stakeholder engagement activities. TRIAL REGISTRATION NUMBER: ISRCTN13357135.

Indexed as

Pulmonary Disease, Chronic ObstructiveAdultChinaCitiesCost-Benefit AnalysisCross-Sectional StudiesHumansMulticenter Studies as TopicSurveys and Questionnaireschronic airways diseasehealth economicsprimary carepublic health

Identifiers

PMID33247005
PMCPMC7703419
OpenAlexW3046133544

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.