ArticleRMD open2024
Rheumatoid arthritis and changes on spirometry by smoking status in two prospective longitudinal cohorts.
Article in RMD open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo compare longitudinal changes in spirometric measures between patients with rheumatoid arthritis (RA) and non-RA comparators.
methodsWe 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 (FEV
resultsAmong 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 FEV
conclusionsSmokers with RA, especially those with baseline obstructive spirometric patterns, experienced lower FEV
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