There is no scientific papers that show that "correlation' at all. And if you have found any, then I'd be very interested to read them. Don't forget that correlation does not mean causation
I only buy some organic fruits (the ones that would get sprayed a lot if they were conventional), but that is about it. Your risk of cancer and other diseases has more to do with your stress level, and your genes than buying organic food.
Buying everything organic is more of a fashion statement rather than a tangible health benefit.