If you look at the general risk factors you come up with some interesting conclusions. First of all, I mentioned that a lot of these things could reduce placental perfusion. But I can’t figure out why being black or having insulin resistance or elevated plasma homocysteine, all of which predispose you to preeclampsia, would reduce your placental blood flow. But what is interesting is you’re really writing down a list of risk factors for cardiovascular disease late in life.