roughly 10% of these will have type 1 diabetes, so if these numbers were, the number of type 1s in the country would be about 1 in every 200 or 250 people.
I'd say it's at least 1 in 500 but probably no more than 1 in 250.
...and it's on the rise, but nobody knows why. Currently rising at more than 6% a year. Odd isn't it? Type 1 isn't linked to obesity, so it isn't that, and it occurs all over the world, so it's not just a Western lifestyle thing, and it occurs more or less evenly across the population (unlike type 2, where certain ethnic groups seem to get it more than others).
I read a link someone posted here recently, it said the risk of type 1 diabetes is slightly increased if a parent has it, so could the increase in cases be due to the fact people with type 1 diabetes are healthy for longer so are having more children?
You're right, the risk is very slightly raised, but as I understand it, nothing like enough to explain the rise in type 1. We are baffling all the experts! (I kind of like that :? )