A classification and regression tree analysis identifies subgroups of childhood type 1 diabetes.
EBioMedicine 82:104118 (2022)
BACKGROUND: Diabetes in childhood and adolescence includes autoimmune and non-autoimmune forms with heterogeneity in clinical and biochemical presentations. An unresolved question is whether there are subtypes, endotypes, or theratypes within these forms of diabetes. METHODS: The multivariable classification and regression tree (CART) analysis method was used to identify subgroups of diabetes with differing residual C-peptide levels in patients with newly diagnosed diabetes before 20 years of age (n=1192). The robustness of the model was assessed in a confirmation and prognosis cohort (n=2722). FINDINGS: The analysis selected age, haemoglobin A1c (HbA1c), and body mass index (BMI) as split parameters that classified patients into seven islet autoantibody-positive and three autoantibody-negative groups. There were substantial differences in genetics, inflammatory markers, diabetes family history, lipids, 25-OH-Vitamin D3, insulin treatment, insulin sensitivity and insulin autoimmunity among the groups, and the method stratified patients with potentially different pathogeneses and prognoses. Interferon-ɣ and/or tumour necrosis factor inflammatory signatures were enriched in the youngest islet autoantibody-positive groups and in patients with the lowest C-peptide values, while higher BMI and type 2 diabetes characteristics were found in older patients. The prognostic relevance was demonstrated by persistent differences in HbA1c at 7 years median follow-up. INTERPRETATION: This multivariable analysis revealed subgroups of young patients with diabetes that have potential pathogenetic and therapeutic relevance. FUNDING: The work was supported by funds from the German Federal Ministry of Education and Research (01KX1818; FKZ 01GI0805; DZD e.V.), the Innovative Medicine Initiative 2 Joint Undertaking INNODIA (grant agreement No. 115797), the German Robert Koch Institute, and the German Diabetes Association.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
C-peptide ; Cart Analysis ; Childhood Autoimmune Disease ; Diabetes Endotypes ; Diabetes In Childhood ; Inflammation ; Islet Autoantibody ; Obesity ; Type 1 Diabetes Genetic Susceptibility
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Language
english
Publication Year
2022
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HGF-reported in Year
2022
ISSN (print) / ISBN
2352-3964
e-ISSN
2352-3964
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Volume: 82,
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Article Number: 104118
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Elsevier
Publishing Place
Amsterdam [u.a.]
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Peer reviewed
POF-Topic(s)
30201 - Metabolic Health
90000 - German Center for Diabetes Research
30203 - Molecular Targets and Therapies
Research field(s)
Helmholtz Diabetes Center
PSP Element(s)
G-502100-001
G-501900-229
G-501900-211
A-630700-001
G-501900-217
G-502600-006
Grants
Bundesministerium für Bildung und Forschung
Juvenile Diabetes Research Foundation United States of America
Leona M. and Harry B. Helmsley Charitable Trust
Union's Horizon 2020
Innovative Medicine Initiative 2 Joint Undertaking
German Robert Koch Institute
German Diabetes Association
Fabian Theis
Competence Network Diabetes Mellitus
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Erfassungsdatum
2022-10-27