Taking Type 2 diabetes as an example, if one parent has diabetes, a child has a 20 % chance of also having the disease. If both parents are diabetic, their children's risk of getting the disease is 40 to 50 %.
以第二型糖尿病為例，父母親中一人有糖尿病，子女罹患糖尿病的機率是 20％；如果雙親都有糖尿病，子女罹患的機率則高達四到五成。