Which is why I stuck to the phrase "as much as 90%"...which in my books means up to 90%.
And yes I think that if your baby usually uses a dummy and you take it away the risk of cot death is actually increased.
As I said I think the important thing on this one (unlike other 'scientific revelations' that get picked on by the press) is that the data is the result of pulling together lots of independent studies. As I understand it.