Investigating the Risk Factors Associated with Type 1 Diabetes (T1D) in the South of Iran: A Casecontrol Study.

Background: Type 1 diabetes (T1D) is an autoimmune disorder characterized by a complex interplay of genetic and environmental factors.

Aim: The objective of this study was to identify the risk factors associated with T1D in the southern region of Iran during the year 2022.

Methods: This research employed a case-control design involving two groups (79 individuals in each group) of healthy children and adolescents diagnosed with T1D. The study assessed and compared the groups regarding various potential risk factors that may influence the development of T1D. Data analysis was performed using SPSS-22 software.

Results: Significant differences were observed between the two groups concerning several factors, including the age at which children began kindergarten, their weight at one year and 18 months, maternal weight gain during pregnancy, delivery method, age of introduction to complementary feeding, duration of breastfeeding, use of cow's milk and vitamin D supplements before one year of age, as well as family history of T1D and other autoimmune diseases among fathers and siblings.

Conclusion: The findings indicate that, in addition to genetic predispositions, numerous environmental factors contribute to the risk of developing T1D. Consequently, it is recommended that health managers and policymakers investigate these risk factors more broadly across various regions to implement effective strategies aimed at reducing the incidence of T1D nationwide.