1.) http://www.commonwealthfund.org/publications/blog/2018/apr/health-coverage-erosion states that the current rate of uninsurance among the 19-64 age group is 15.5%, and that an additional 5% of the insured in that age group are projected to drop their coverage in 2019.
100% total - 15.5% uninsured = 84.5% insured
5% * 84.5% = 4.2% of the total 19-64 age group will lose insurance in 2019.
Combine with the current 15.5% uninsured to get 19.7% total uninsured in 2019.
2.) http://annals.org/aim/article-abstract/1867050/changes-mortality-after-massachusetts-health-care-reform-quasi-experimental-study
3.) https://en.wikipedia.org/wiki/Demography_of_the_United_States
The current population of the US is estimated at 327,589,916 with about 58.4% of that falling into the 21-64 age group. I will therefore approximate the 19-64 age group (see footnote 1 above) as 60% of the population.
327,589,916 total people * 60% in age group * 19.7% uninsured * 1 death / 830 uninsured = 46,652 deaths per year, which I have rounded down to 46,000. Note that this excludes seniors (who are covered under Medicare), and excludes children (only because I don’t have the stats handy for children).
4.) https://www.cdc.gov/nchs/fastats/deaths.htm
It should be noted that there is absolutely overlap between these top ten as reported by the CDC and the 46,000 that I’m attributing to uninsurance, and I have no way of determining the magnitude of this overlap. However, the CDC does not track uninsurance as a cause of death, so if anything, the overlap would result in us subtracting deaths from causes 1-10 - those who would have survived heart disease, cancer, etc if they’d had insurance - so I’m actually being conservative here by ranking uninsurance as cause “#9.5”.
5.) https://everytownresearch.org/gun-violence-by-the-numbers/
https://www.cdc.gov/drugoverdose/data/statedeaths.html
https://www.cdc.gov/cancer/breast/statistics/index.htm
https://www.cdc.gov/motorvehiclesafety/impaired_driving/impaired-drv_factsheet.html
http://www.start.umd.edu/news/fact-sheet-american-deaths-terrorist-attacks-1995-2016