Mrs BC/Pruni: read my post on SIDS Saturday, 29 July, 2006 1:57:31 PM....it describes some of the problems surrounding getting data about SIDS and bf. It's going to get harder and harder to get good Western data on this, as SIDS is becoming rarer, too.
Everyone accepts you cannot get a randomised controlled trial on infant feeding, but that is not the only way to get robust data. We have a massive body of literature going back about 20 years which finds again and again that the way you feed babies matters a lot in many ways, in the short and long term.
Your red book stats will not be part of the Infant Feeding Survey (though they may be part of your PCT's figures), which is a highly respected five-yearly study, carefully carried out and analysed.
In separate surveys, PCTs have been charged with getting infant feeding data, and a lot of them are not very good at it. The DoH has just published this which is a picture of local surveys of bf initiation, and a large number of PCTs' data has had to be ignored, because it simply doesn't add up. If you're into stats, you'll be interested to see how the DoH managed to suss out how crap the data collection was - it was stuff like formula feeders and breastfeeders added together making more or fewer babies born than was the case....that sort of thing.