Can you guys tell me how big is the chance for me to get diabetes type 1?

Depends : The likelihood that someone without a relative with type 1 diabetes will get t1d is about 0.4% (4 per 1000). If you have a first degree relative with t1d those odds go to 4% (4 per 100). There are ongoing research studies that can help determine risks in first and second degree relatives www.Diabetestrialnet.Org.

1 in 300: the risk in the population at large for type one diabetes is one in 300. If you have a first degree family member with diabetes type one, child, parent or sibling, then your risk is one in 20. If the latter is the case you can join a screening program called trial net which looks for early autoantibodies that precede development of type one diabetes. Intervention research is ongoing.