Type 1 diabetes mellitus onset is most commonly in which age group?

Type 1 diabetes mellitus onset is most commonly in which age group?

• A. 60 years or older
• B. <30 years
• C. 40-50 years
• D. 20-39 years

Answer: (B)

Type 1 diabetes results from autoimmune destruction of pancreatic beta cells, causing sudden onset of insulin deficiency. This process most commonly appears in childhood, adolescence, and young adulthood. Because of this pattern, the age group under 30 years old is the best fit for where type 1 diabetes typically begins. The older age ranges align more with type 2 diabetes or other forms, rather than classic type 1. So the group younger than 30 is the most common onset.

Type 1 diabetes results from autoimmune destruction of pancreatic beta cells, causing sudden onset of insulin deficiency. This process most commonly appears in childhood, adolescence, and young adulthood. Because of this pattern, the age group under 30 years old is the best fit for where type 1 diabetes typically begins. The older age ranges align more with type 2 diabetes or other forms, rather than classic type 1. So the group younger than 30 is the most common onset.