The people were upset about all immigration independent of whether they were from the EU or not. The BrExit vote was about all immigration, not just that from

The people were upset about all immigration independent of whether they were from the EU or not. The BrExit vote was about all immigration, not just that from the EU. The working class hardly cares whether their jobs are taken or wages depressed by EU immigrants or immigrants outside the EU. You present no data about immigration ages (many parents, grandparents presumably come with their adult children to stay in Britain). In addition, immigrants from poorer countries independent of age may have more health problems and unhealthy behaviors (eg, cigarette smoking) that are more expensive to treat. Thus, without additional data about the health characteristics of the immigrant population, it is reasonable to assume that their health problems are consistent with those non-immigrants if not more expensive because of unhealthy environments and lower quality medical care in poorer countries that the immigrants came from. Thus it is reasonable to assume 3.3 million immigrants, about 5% of the population consuming 5% of the NHS budget of £6 billion. Even if this were off by a factor of two, it would still be £3 billion, not £160 million. The £160 million additional increase would suggest that the NHS additional cost for 5% of the population is 0.15% of £115. The "fact source" you cite seems to have some sort of political axe to grind for a 0.15% increase for 5% of the population is simply not credible.