ArticleRMD open2025
Rising incidence of systemic autoimmune inflammatory rheumatic diseases during the COVID-19 pandemic: a geographical cohort study.
Article in RMD open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
Who cites it
2 citing papers in PubMed.
- Que sera, rheumatology? Thoughts about the future.Clinical rheumatology · 2026Article
- B cell receptor signaling in autoimmune rheumatic diseases: regulatory mechanisms and therapeutic targeting.Frontiers in immunology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe natural infection with SARS-CoV-2, or vaccination against it, has been postulated to directly contribute to an increase in the incidence of autoimmune inflammatory rheumatic diseases (AIIRDs). Conversely, preventive measures limiting access to healthcare services could have resulted in missed or delayed AIIRD diagnoses or have reduced the infection rate of any triggering infections. We aimed to define real-life trends in AIIRD diagnoses from the prepandemic period through 2023 in a large and geographically circumscribed population of 6.5 million inhabitants.
methodsAIIRDs' annual diagnosis rates from 2017 to 2023 were derived from the registration of disease-specific exemption codes of the resident population of Lazio, a highly populated region in central Italy. Incidence rate ratios (IRRs) were calculated to compare pandemic and average prepandemic rates (2017-2019). Poisson regression was used to define statistically significant changes.
resultsA total of 16 254 AIIRD diagnoses were registered over the 7-year period. The average prepandemic incidence of AIIRDs was 4.81 per 10 000 inhabitants (95% CI 4.69 to 4.92). Compared with the prepandemic period, the diagnosis rate decreased in 2020 (IRR 0.68, 95% CI 0.64 to 0.72) but remained above prepandemic levels in 2021, 2022 and 2023. In 2023, there was a 22% increase in AIIRD incidence compared with prepandemic levels (IRR 1.22, 95% CI 1.17 to 1.28, p<0.001). This excess incidence was primarily driven by increases in both primary arthritides and systemic rheumatic diseases.
conclusionsWe observed a temporary decline in diagnosis in 2020, followed by a substantial increase from 2021 to 2023. This trend (decline and increase) may be linked to COVID-19 infection or to the reduction and subsequently potential increase of other infectious triggers following the use of preventive measures, such as facial masks and social distancing.
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