Racial and ethnic differences among children with new-onset autoimmune Type 1 diabetes.

Area of Science:

• Pediatric Endocrinology
• Autoimmune Diseases
• Clinical Research

Background:

• Type 1 diabetes (T1D) exhibits heterogeneity in presentation and progression.
• Ethnic and racial disparities are increasingly recognized in pediatric autoimmune diseases.
• Understanding these differences is crucial for personalized medicine in Type 1 diabetes.

Purpose of the Study:

• To compare demographic and clinical characteristics of ethnic minority children with new-onset autoimmune Type 1 diabetes against non-Hispanic white children.
• To investigate potential ethnic variations in the pathogenesis of pediatric Type 1 diabetes.

Main Methods:

• Analysis of a single-center cohort of 712 children diagnosed with new-onset autoimmune Type 1 diabetes between January 2008 and March 2011.
• Comparison of clinical data including age, BMI percentile, sex, C-peptide levels, glucose levels, diabetic ketoacidosis, and Tanner stage across ethnic groups (Hispanic, African-American, non-Hispanic white).

Main Results:

• Hispanic children had higher C-peptide levels (P=0.004), elevated BMI (P<0.001), and higher rates of diabetic ketoacidosis (P=0.006) compared to non-Hispanic white children.
• African-American children showed higher glucose levels (P=0.017), increased ketoacidosis (P=0.001), and elevated BMI (P<0.001), with a lower proportion in the pre-pubertal stage (P=0.01).
• After adjustment for confounders, Hispanic children maintained higher C-peptide levels (P=0.01), suggesting distinct biological differences.

Conclusions:

• Ethnicity is associated with distinct clinical characteristics at the onset of pediatric autoimmune Type 1 diabetes.
• Hispanic children exhibit specific differences in C-peptide levels and metabolic profiles, indicating potential variations in pathogenesis.
• These findings underscore the role of ethnicity in Type 1 diabetes heterogeneity and may inform tailored interventions.