Evidence map›Paper›PMID 41423298›Full record

ArticleBMJ open2025

Epidemiology and disease burden of connective tissue disease-associated interstitial lung disease (CTD-ILD) in Asia: a systematic review and meta-analysis protocol.

Felix Chua, Sivasangari Subramaniam, Wei Hong Lai, Shirin Hui Tan, Hazel Ru Ann Yean, Sze Shyang Kho, Jasmine Sze Yin Yew, Hooi Chuen Hong, Cheryl Chun Man Ng, Syazatul Syakirin Sirol Aflah and 6 more

Abstract read
In one paragraph

Article in BMJ open, 2025. 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
–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

0 citing papers in PubMed.

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

16 authors.

Felix Chua *Interstitial Lung Disease Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK felixjookiat.chua@nhs.net.
Sivasangari Subramaniam *Clinical Research Centre, Penang Hospital, Hospital Pulau Pinang, George Town, Pulau Pinang, Malaysia.ORCID http://orcid.org/0000-0003-1426-4800
Wei Hong Lai *Institute for Clinical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.ORCID http://orcid.org/0009-0003-5463-2740
Shirin Hui Tan *Institute for Clinical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.
Hazel Ru Ann Yean *Sunway University, Bandar Sunway, Selangor, Malaysia.
Sze Shyang KhoSarawak General Hospital, Kuching, Malaysia.
Jasmine Sze Yin YewHospital Besar Melaka, Ministry of Health Malaysia, Melaka, Malaysia.
Hooi Chuen HongHospital Besar Melaka, Ministry of Health Malaysia, Melaka, Malaysia.
Cheryl Chun Man NgDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong SAR, China.
Syazatul Syakirin Sirol AflahInstitut Perubatan Respiratori, Hospital Kuala Lumpur, Ministry of Health Malaysia, Kuala Lumpur, Malaysia.
Norshahiratul Atiqah Mohd ZaidiInstitute for Clinical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.
Voon H OngDepartment of Rheumatology, Royal Free Hospital, London, UK.
Gin Tsen ChaiDepartment of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore.
Swee Hung AngInstitute for Clinical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.
Hasnah MaamorSector for Evidence-based Healthcare, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.
Nor Asiah MuhamadSector for Evidence-based Healthcare, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Selangor Darul Ehsan, Malaysia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionInterstitial lung diseases (ILD) associated with an underlying connective tissue disease (CTD), also known as a systemic autoimmune rheumatic disease or SARD, are chronic conditions with a tendency to progress. CTD-ILDs are increasingly diagnosed and pose an important global health challenge. This systematic review aims to provide an overarching evaluation of their epidemiology and disease burden in Asia. In this review, the term CTD-ILD will be used to denote all major forms of ILD arising in the context of a SARD. METHODS AND ANALYSIS: This systematic review will adhere to the standards of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, including a flow diagram to depict the process by four independent reviewers that will assess titles and abstracts against the following predetermined criteria. A systematic review of the literature search published from 2000 to 2024 will be conducted using five electronic databases including PubMed/MEDLINE, Scopus, EMBASE, Cochrane Library and Web of Science. Publications that meet the inclusion criteria of this review will be subjected to a full-text review to extract relevant data. Collated data will be analysed and organised into categories based on the expected outcome and objectives. The quality of published evidence, including heterogeneity across studies, will be checked against PRISMA checklists and assessed by Newcastle-Ottawa Scale. ETHICS AND DISSEMINATION: Ethics approval is not applicable for this study since no original data will be collected. The findings of this review will be disseminated through a peer-reviewed publication in a scientific journal and conference communications, with the aim of contributing insights to the field by identifying research gaps and informing clinical practice. PROSPERO REGISTRATION NUMBER: The protocol of this systematic review is registered with the National Medical & Research Register (ID-24-03600-GUB) and International Prospective Register of Systematic Reviews PROSPERO (CRD420251037095).

Indexed as

Connective Tissue DiseasesCost of IllnessLung Diseases, InterstitialAsiaHumansMeta-Analysis as TopicResearch DesignSystematic Reviews as TopicEPIDEMIOLOGYInterstitial lung diseasePrevalenceRESPIRATORY MEDICINE (see Thoracic Medicine)ReviewRHEUMATOLOGY

Identifiers

PMID41423298
PMCPMC12719887

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Registered trials

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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.