I was 10 (1962). The youngest was a 2nd or 3rd cousin who was 4.
I was DX at 19 years old and my brother at 14. I have meet parents of a 2 year old who pumps. That is cool !
I'll throw in the curveball: I was diagnosed at age 58. I'd go for oldest, but I know there are older initial diagnoses on here and older still out there in the world.
I was 16. Our old neighbor's son was 18 months and two of my high school friends, now married, have a now 3 year-old who was dx'ed at 14 months.
I was diagnosed at 9. A former co-worker was diagnosed at 3, and the son of a former co-worker was diagnosed at 2. I have heard of younger, but only online.
Seems even among those with childhood-onset Type 1, it seems as if a majority of people are diagnosed as teenagers. At a few "real life" support groups I've been to, I am usually the youngest or second-youngest in terms of age of diagnosis.
I was diagnosed at age 3. I've met a handful of others diagnosed younger than me. I was diagnosed in 1974, so I'm 41 now and still going strong -- no complications after 38 years on insulin :)
I was diagnosed at 10yrs, no one at school had D. The lady who works as a receptionist at the docs has a cat who is D, I'm serious, she gives her insulin. I've heard of D dogs but not cats. She's a lovely woman, bit mad into the cats like myself. I'd say the cat was about one year.
I was dxed at 7 and believe my uncle (past last year) was dxed at 4...
I was diagnosed at 20. I have heard about children being diagnosed soon after birth, but I have never really known personally anyone who was that young.
I read an abstract that detailed the immune response was present in an unborn fetus even before birth due to the interaction of the two immune systems ( mother and child).
This was found in amniotic fluid that was taken during the third trimester and tested at a later date after the baby was diagnosed with diabetes.
I think that suggests that it is possible to be born with diabetes, but the abstract was unclear about weather the fetus was diagnosed or just beginning the immune response.
Anyway it was from NEJM from about 2 years ago, If I can find it, Ill post a link here.
I was 14 (1975)
I was diagnosed when I was 11 months old. I am 42 now and have no complications.