Evidence map›Paper›PMID 40349062›Full record

Trial reportBMC pulmonary medicine2025

Reliability and usability of a portable spirometer compared to a laboratory spirometer.

Yi Gao, Binmiao Liang, Xibin Su, Wentao Rao, Huitong Cheng, Chonghui Fan, Xinxin Yu, Yanqing Xie, Beilan Shen, Jing Du and 2 more

Abstract readRandomized Controlled TrialMulticenter StudyComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMC pulmonary medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. 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

12 authors.

Yi Gao *National Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China.
Binmiao Liang *Department of Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
Xibin SuDepartment of Clinical Medicine, Medcaptain Medical Technology Co., Ltd, 7F, Building 7A, Phase 3 of Shenzhen International Innovation Valley, Liuxin Fourth Street, Nanshan District, Shenzhen, Guangdong, People's Republic of China.
Wentao RaoDepartment of Clinical Medicine, Medcaptain Medical Technology Co., Ltd, 7F, Building 7A, Phase 3 of Shenzhen International Innovation Valley, Liuxin Fourth Street, Nanshan District, Shenzhen, Guangdong, People's Republic of China.
Huitong ChengDepartment of Clinical Medicine, Medcaptain Medical Technology Co., Ltd, 7F, Building 7A, Phase 3 of Shenzhen International Innovation Valley, Liuxin Fourth Street, Nanshan District, Shenzhen, Guangdong, People's Republic of China.
Chonghui FanAnesthesia and Respiratory Division, Medcaptain Medical Technology Co., Ltd., Shenzhen, Guangdong, People's Republic of China.
Xinxin YuNational Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China.
Yanqing XieNational Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China.
Beilan ShenNational Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China.
Jing DuDepartment of Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
Linwei LiDepartment of Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
Binjian LiuDepartment of Clinical Medicine, Medcaptain Medical Technology Co., Ltd, 7F, Building 7A, Phase 3 of Shenzhen International Innovation Valley, Liuxin Fourth Street, Nanshan District, Shenzhen, Guangdong, People's Republic of China. benjamin.liu@medcaptain.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccess to spirometry remains limited due to the expense and inconvenience of stationary laboratory spirometers, which may compromise the diagnosis and management of chronic respiratory diseases (CRDs), such as chronic obstructive pulmonary disease (COPD) and asthma. Portable spirometers offer potential advantages over laboratory spirometers in terms of affordability, user-friendliness, and portability. The objective of this study is to evaluate the reliability and usability of a portable spirometer (Medcaptain VC-30 Pro) compared to a conventional laboratory spirometer (Jaeger MasterScreen PFT).

methodsIn this multi-center, randomized, open-label crossover study, 132 subjects from two hospitals were recruited to perform pulmonary function tests using both the portable spirometer and the laboratory spirometer. Forced expiratory volume in one second (FEV

resultsA total of 126 recruited participants achieved acceptable pulmonary function test results. The intraclass correlation coefficients (ICCs) for primary outcomes FEV

conclusionsThe portable spirometer exhibited a strong correlation and agreement with a high-quality laboratory spirometer, as well as concordance in spirometric abnormality diagnosis and severity classification. Non-specialist can obtain acceptable results using this portable spirometer.

Indexed as

AsthmaPulmonary Disease, Chronic ObstructiveSpirometryAdultAgedCross-Over StudiesFemaleForced Expiratory VolumeHumansMaleMiddle AgedReproducibility of ResultsVital CapacityAsthmaChronic obstructive pulmonary diseasePortable spirometerPulmonary function testSpirometry

Identifiers

PMID40349062
PMCPMC12065281

What OpenQuestion holds

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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.