Evidence map›Paper›PMID 34635095›Full record

SynthesisRespiratory research2021

Factors associated with mortality in rheumatoid arthritis-associated interstitial lung disease: a systematic review and meta-analysis.

Meihua Qiu, Jing Jiang, Xueyuan Nian, Yutie Wang, Pengfei Yu, Jie Song, Shenchun Zou

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Respiratory research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 3 pooled it
6.6field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Review
  7. Review
  8. Prevalence and Prognostic Impact of Progressive Pulmonary Fibrosis.Tuberculosis and respiratory diseases · 2026
    Review
  9. Article
  10. Interstitial lung disease in psoriasis: A systematic review and meta-analysis.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2026
    Article
  11. Review
  12. The prevalence of interstitial lung disease and bronchiectasis in rheumatoid arthritis: A systematic review and meta-analysis.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

7 authors at 1 institution in 1 country.

Meihua Qiu *Department of Respiratory and Critical Care Medicine, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China.
Jing Jiang *Department of Respiratory and Critical Care Medicine, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China.
Xueyuan NianDepartment of Gastroenterology, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China.
Yutie WangDepartment of Rheumatology and Immunology, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China.
Pengfei YuDepartment of Respiratory and Critical Care Medicine, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China.
Jie Song *Department of Respiratory and Critical Care Medicine, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China. songjieyhd@sina.com.
Shenchun Zou *Department of Respiratory and Critical Care Medicine, Yantai Yuhuangding Hospital, Affiliated with the Medical College of Qingdao, 20 Yuhuangding East Road, Yantai, 264200, Shandong, China. ytyhdpccm@163.com.ORCID http://orcid.org/0000-0002-1497-715X
Yuhuangding Hospital · CN

Funding

Yantai Science and Technology Bureau No. 2020YD024
6 · The paper itself

Abstract

backgroundInterstitial lung disease (ILD) is a common and potentially life-threatening complication for rheumatoid arthritis (RA) patients. However, there is a lack of clear prognostic factors in rheumatoid arthritis-associated interstitial lung disease (RA-ILD) patients. The purpose of this study was to complete a systematic review and meta-analysis of the factors associated with mortality in RA-ILD patients.

methodsMedline, EMBASE and the Cochrane Library were searched up to September 1, 2020. The Newcastle-Ottawa Scale (NOS) was applied to assess the methodological quality of the eligible studies. Study characteristics and magnitude of effect sizes were extracted. Then, pooled hazard ratios (HRs) with the corresponding 95% confidence intervals (CIs) and pooled risk ratios (RRs) with 95% CIs were calculated to assess the factors associated with mortality in RA-ILD.

resultsTwenty-three of 3463 articles were eligible, and ten factors associated with mortality for RA-ILD were evaluated in the meta-analysis. Older age (HRs = 1.04, 95% CI 1.03-1.05), male sex (HRs = 1.44, 95% CI 1.21-1.73), having a smoking history (HRs = 1.42, 95% CI 1.03-1.96), lower diffusing capacity of the lung for carbon monoxide (DLCO)% predicted (HRs = 0.98, 95% CI 0.97-1.00), forced vital capacity (FVC)% predicted (HRs = 0.99, 95% CI 0.98-1.00), composite physiological index (CPI) (HRs = 1.04, 95% CI 1.02-1.06), usual interstitial pneumonia (UIP) pattern on HRCT (HRs = 1.88, 95% CI 1.14-3.10 and RRs = 1.90, 95% CI 1.50-2.39), emphysema presence (HRs = 2.31, 95% CI 1.58-3.39), and acute exacerbation of ILD (HRs = 2.70, 95% CI 1.67-4.36) were associated with increased mortality in RA-ILD, whereas rheumatoid factor (RF) positive status was not associated.

conclusionsThrough this systematic review and meta-analysis, we found that older age, male sex, smoking history, higher CPI, lower DLCO% predicted, lower FVC% predicted, UIP pattern on HRCT, emphysema presence and acute exacerbation of ILD were associated with an increased risk of mortality in RA-ILD.

Indexed as

AdultAgedAged, 80 and overAge FactorsArthritis, RheumatoidDisease ProgressionFemaleHumansLungLung Diseases, InterstitialMaleMiddle AgedPrognosisPulmonary EmphysemaRisk AssessmentRisk FactorsInterstitial lung diseaseMeta-analysisMortalityRheumatoid arthritis

Identifiers

PMID34635095
PMCPMC8504109
OpenAlexW3205475002

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.