"Pre-existing condition" is a very vague term, but here's what I could find on that: - This Gallop survey [1] says about 27% percent of US adults self-identify

"Pre-existing condition" is a very vague term, but here's what I could find on that: - This Gallop survey [1] says about 27% percent of US adults self-identify as having a pre-existing condition. - This report by HHS [2] estimates that between 23 to 51% of the non-elderly (under 65 yo) population have a pre-existing condition depending on the definition. I think the percentage of the US population above 65 is about 17%. So even if we assume all of the elderly have a pre-existing condition then the range would be about 36 to 59% [3]. [1]: https://news.gallup.com/poll/245108/one-four-adults-say-pre-existing-condition.aspx https://news.gallup.com/poll/245108/one-four-adults-say-pre-... [2]: https://aspe.hhs.gov/sites/default/files/private/pdf/255396/Pre-ExistingConditions.pdf https://aspe.hhs.gov/sites/default/files/private/pdf/255396/... [3]: https://www.wolframalpha.com/input/?i=a%3D%280.23*%281-0.17%29+%2B+0.17%29%3B+b%3D%280.51*%281-0.17%29+%2B+0.17%29+ https://www.wolframalpha.com/input/?i=a%3D%280.23*%281-0.17%...