Rheumatoid arthritis and changes on spirometry by smoking status in two prospective longitudinal cohorts.
RMD Open
; 10(2)2024 Jun 17.
Article
en En
| MEDLINE
| ID: mdl-38886003
ABSTRACT
OBJECTIVE:
To compare longitudinal changes in spirometric measures between patients with rheumatoid arthritis (RA) and non-RA comparators.METHODS:
We analysed longitudinal data from two prospective cohorts the UK Biobank and COPDGene. Spirometry was conducted at baseline and a second visit after 5-7 years. RA was identified based on self-report and disease-modifying antirheumatic drug use; non-RA comparators reported neither. The primary outcomes were annual changes in the per cent-predicted forced expiratory volume in 1 s (FEV1%) and per cent predicted forced vital capacity (FVC%). Statistical comparisons were performed using multivariable linear regression. The analysis was stratified based on baseline smoking status and the presence of obstructive pattern (FEV1/FVC <0.7).RESULTS:
Among participants who underwent baseline and follow-up spirometry, we identified 233 patients with RA and 37 735 non-RA comparators. Among never-smoking participants without an obstructive pattern, RA was significantly associated with more FEV1% decline (ß=-0.49, p=0.04). However, in ever smokers with ≥10 pack-years, those with RA exhibited significantly less FEV1% decline than non-RA comparators (ß=0.50, p=0.02). This difference was more pronounced among those with an obstructive pattern at baseline (ß=1.12, p=0.01). Results were similar for FEV1/FVC decline. No difference was observed in the annual FVC% change in RA versus non-RA.CONCLUSIONS:
Smokers with RA, especially those with baseline obstructive spirometric patterns, experienced lower FEV1% and FEV1/FVC decline than non-RA comparators. Conversely, never smokers with RA had more FEV1% decline than non-RA comparators. Future studies should investigate potential treatments and the pathogenesis of obstructive lung diseases in smokers with RA.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Artritis Reumatoide
/
Espirometría
/
Fumar
Límite:
Adult
/
Aged
/
Female
/
Humans
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Male
/
Middle aged
País/Región como asunto:
Europa
Idioma:
En
Revista:
RMD Open
Año:
2024
Tipo del documento:
Article
País de afiliación:
Estados Unidos