Observational studyPloS one2025
Autoimmune diseases as pre-existing conditions and sequelae of post COVID-19 condition in a Massachusetts community based observational study of COVID-19 patients.
Observational study in PloS one, 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.
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Who cites it
2 citing papers in PubMed.
- Low serum selenium combined with SELENOP-autoantibodies are associated with persistent fatigue after SARS-CoV-2 infection.Redox biology · 2026Article
- Clinical and Inflammatory Predictors of Neurocognitive Decline in Long COVID: A Two-Year Longitudinal Study with Propensity Score Matching.Medicina (Kaunas, Lithuania) · 2026Observational
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Between 10%-26% of COVID patients develop Post COVID condition (PCC). The complex interaction between autoimmunity and SARS-CoV-2 is emerging as an important challenge and an opportunity to improve diagnosis and treatment of immune mediated chronic illnesses. In a retrospective cohort study using electronic health records from a Massachusetts group medical practice, we identified 38,327 patients with a COVID-19 diagnosis and 1,143 with a PCC diagnosis from 1/1/2020 to 6/25/2023. We investigated the hypotheses that auto-immune diseases-1) increase risk of developing PCC; 2) were more likely to develop after COVID-19; and 3) medical utilization would be higher in patients with a PCC diagnosis. We compared COVID-19 patients with and without a PCC diagnosis. We evaluated demographics, PCC symptoms, pre-infection comorbidities, autoimmune diseases pre- and post- SARS-CoV-2 infection, and medical utilization. Females were more likely to have a PCC diagnosis (63%, p = 0.012). High BMI (> 30), pre-infection chronic respiratory disease, and "any post-infection autoimmune disease" were also associated with PCC diagnosis, OR= 1.25, (95% CI: 1.11, 1.41); OR=1.64, (95% CI: 1.45, 1.86), OR=1.57, (95% CI: 1.10, 2.24), respectively. Pre-infection, psoriasis OR=1.41 (95% CI: 1.04, 1.91) and rheumatoid arthritis OR=1.64, (95% CI: 1.00, 2.69) were more likely to be observed in patients with a PCC diagnosis. Post-infection, Sjögren's syndrome, OR=4.05 (95% CI: 1.94, 8.49) was more likely among PCC diagnosed patients and rheumatoid arthritis OR=3.18 (95% CI: 0.99, 10.46) may also be more prevalent. We observed approximately one more day of medical utilization per month among patients with a PCC diagnosis (p < 0.001). We confirm PCC diagnosis is more prevalent among women, patients with high BMI and chronic respiratory disease. Our findings support emerging evidence that pre-existing autoimmune diseases may increase risk of PCC, SARS-CoV-2 may increase the risk of new onset autoimmune disease, and medical utilization is higher among patients with PCC.
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