A good book on this is Reckoning With Risk by Gerd Gigerenzer, who uses several examples from healthcare.
Often these numbers are given as percentages, and he says that most people (even the doctors and nurses administering the tests) don't really understand them, and that we should use natural numbers (as Ben Goldacre does in the example you provide).
He uses examples from cancer screening and HIV testing.
Often these numbers are given as percentages, and he says that most people (even the doctors and nurses administering the tests) don't really understand them, and that we should use natural numbers (as Ben Goldacre does in the example you provide).
He uses examples from cancer screening and HIV testing.