What does this research mean for the field?

Kawasaki disease is associated with a selectively increased long-term risk of psoriasis and vitiligo, but not generalized autoimmune or lymphoproliferative diseases. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine whether children diagnosed with Kawasaki disease face an elevated 20-year risk of autoimmune disorders and lymphoproliferative malignancies compared to matched controls.

September 5, 2026European Journal of PediatricsOpen Access

Autoimmune and lymphoproliferative outcomes after Kawasaki disease: a 20-year population-based cohort study

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Authors

RSRim Kasem Ali Sliman NSNadin Shalaby HCHilla Cohen

Discussion

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Overview

A retrospective cohort study observes increased risks of psoriasis and vitiligo in children with Kawasaki disease, highlighting selective long-term immune dysregulation.

Key Points

To determine whether children diagnosed with Kawasaki disease face an elevated 20-year risk of autoimmune disorders and lymphoproliferative malignancies compared to matched controls.
Conducted a retrospective matched cohort study utilizing the Clalit Health Services database (2002–2022) with follow-up through December 2024.
Matched 2,126 children with Kawasaki disease 1:5 to 10,630 controls by sex and birthdate (± 30 days).
Calculated adjusted hazard ratios (AHRs) with 95% confidence intervals at 2, 5, 10, 15, and 20 years using Cox proportional hazards models for nine autoimmune and lymphoproliferative outcomes.
Kawasaki disease was associated with a significantly elevated risk of psoriasis from 2 years (AHR 3.03, 95% CI 1.19–7.73) through 15 years (AHR 1.50, 95% CI 1.01–2.23), as well as increased vitiligo risk at 10 years (AHR 1.38, 95% CI 1.03–1.86).
An exploratory elevation in Hodgkin lymphoma risk appeared at 15 years (AHR 14.99, 95% CI 1.55–145.12) and 20 years (AHR 7.95, 95% CI 1.32–48.00), though this was based on only 3 cases in the Kawasaki group versus 1–2 in controls.
No significant associations were observed for hypothyroidism, type 1 diabetes mellitus, celiac disease, inflammatory bowel disease, immune thrombocytopenia, or non-Hodgkin lymphoma.

Cite This Study

Sliman et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4436b95aff0620ebd41 https://doi.org/10.1007/s00431-026-07356-w

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September 5, 2026European Journal of PediatricsOpen Access

Autoimmune and lymphoproliferative outcomes after Kawasaki disease: a 20-year population-based cohort study

View Full Paper

Ask AI

Bookmark

Authors

RSRim Kasem Ali Sliman NSNadin Shalaby HCHilla Cohen

Discussion

Member takes

Overview

A retrospective cohort study observes increased risks of psoriasis and vitiligo in children with Kawasaki disease, highlighting selective long-term immune dysregulation.

Key Points

To determine whether children diagnosed with Kawasaki disease face an elevated 20-year risk of autoimmune disorders and lymphoproliferative malignancies compared to matched controls.
Conducted a retrospective matched cohort study utilizing the Clalit Health Services database (2002–2022) with follow-up through December 2024.
Matched 2,126 children with Kawasaki disease 1:5 to 10,630 controls by sex and birthdate (± 30 days).
Calculated adjusted hazard ratios (AHRs) with 95% confidence intervals at 2, 5, 10, 15, and 20 years using Cox proportional hazards models for nine autoimmune and lymphoproliferative outcomes.
Kawasaki disease was associated with a significantly elevated risk of psoriasis from 2 years (AHR 3.03, 95% CI 1.19–7.73) through 15 years (AHR 1.50, 95% CI 1.01–2.23), as well as increased vitiligo risk at 10 years (AHR 1.38, 95% CI 1.03–1.86).
An exploratory elevation in Hodgkin lymphoma risk appeared at 15 years (AHR 14.99, 95% CI 1.55–145.12) and 20 years (AHR 7.95, 95% CI 1.32–48.00), though this was based on only 3 cases in the Kawasaki group versus 1–2 in controls.
No significant associations were observed for hypothyroidism, type 1 diabetes mellitus, celiac disease, inflammatory bowel disease, immune thrombocytopenia, or non-Hodgkin lymphoma.

Cite This Study

Sliman et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4436b95aff0620ebd41 https://doi.org/10.1007/s00431-026-07356-w

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