now that i've read the abstract, there are probably a huge array of variables contributing to older age at onset. just regarding d, when you see no difference in incidence in an american study, without seeing full details i would tend to attribute that to indoors lifestyle, clothing, and sunscreen. with that said what if having worse disease does have something to do with low vit d, and the older onset is from something else.
Last edited by jimmylegs
on Mon Feb 08, 2010 9:51 am, edited 1 time in total.