ArticlePloS one2018
Clinical characteristics and prognostic factors of pneumonia in patients with and without rheumatoid arthritis.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 26 citations in OpenAlex.
- Association of ICD-10-Coded Pneumonia Events with Interstitial Lung Disease Outcomes in Patients with Rheumatoid Arthritis: A Large Database Retrospective Cohort.Advances in respiratory medicine · 2026Article
- Autoantibody Positivity in Bronchiectasis Without Interstitial Lung Diseases: Risk Factors and Impact on Clinical Features.Journal of clinical medicine · 2026Article
- Vaccination Update and Specific Concerns for RA.Current rheumatology reports · 2025Review
- Article
- The Efficacy and Safety of Simultaneous Vaccination with Polysaccharide Conjugate Vaccines Against Pneumococcal (13-Valent Vaccine) andVaccines · 2025Article
- Impact of PCV13 and PPSV23 Vaccination on Invasive Pneumococcal Disease in Adults with Treated Rheumatoid Arthritis: A Population-Based Study.Microorganisms · 2024Article
- Vaccination coverage in children with juvenile idiopathic arthritis, inflammatory bowel diseases, and healthy peers: Cross-sectional electronic survey data.World journal of clinical pediatrics · 2023Article
- Patterns and factors associated with pneumococcal vaccination in a prospective cohort of 1,697 patients with rheumatoid arthritis.Frontiers in medicine · 2022Article
- Infectious Pneumonia and Lower Airway Microorganisms in Patients with Rheumatoid Arthritis.Journal of clinical medicine · 2021Article
- Clinical features and outcomes of adult COVID-19 patients co-infected with Mycoplasma pneumoniae.The Journal of infection · 2020Article
- Rheumatoid arthritis increases the risk of pleural empyema.Open medicine (Warsaw, Poland) · 2020Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTo elucidate the characteristics of pneumonia in rheumatoid arthritis (RA) patients and to assess whether pneumonia in RA patients differs from that in non-RA patients.
methodsWe retrospectively divided pneumonia patients into two groups, those with RA and those without RA, and compared the two groups. We evaluated the risk factors for mortality with univariate and multivariate logistic regression analysis.
resultsAmong 1549 patients, 71 had RA. The RA patients with pneumonia were 71.0±8.9 years old, 54.9% were female, 40.9% had a smoking history, and 71.8% had underlying respiratory disease. Female sex, non-smoker, and respiratory comorbidities were statistically more frequent in the RA patients than non-RA patients. The most frequent causative microbial agents of pneumonia in the RA patients were Streptococcus pneumoniae, Pseudomonas aeruginosa, Haemophilus influenzae, Mycoplasma pneumoniae, and influenza virus, whereas those of pneumonia in non-RA patients were S. pneumoniae, influenza virus, M. pneumoniae, Legionella spp., P. aeruginosa, H. influenzae, and Moraxella catarrhalis. Polymicrobial infection were identified as etiologies more frequently in the RA patients than non-RA patients. Although the severity of pneumonia did not differ between the two groups, mortality was statistically higher in the RA patients than non-RA patients. Multivariate analysis showed RA to be an independent risk factor for mortality.
conclusionsP. aeruginosa, H. influenzae, M. catarrhalis, and polymicrobial infection were statistically more frequent etiologies of pneumonia in the RA patients than non-RA patients. RA itself was found to be an independent risk factor for mortality from pneumonia.
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