From several speeches given by Lord Darzi, demonstrating inequalities in the effectiveness of the public health system within London. I think this is a particularly effective graphic showing the decreased life expectency between the wealthier districts of the city compared to the less wealthy.
In case you can't read the numbers, male/female life expectancy drops from 77.7/85.2 years in Westminster to 70.7/78.4 in Canning Town. (The source of data is London Health Observatory using Office for National Statistics data. The diagram was produced by the Department of Health.)
Again, I present this not be create a debate about the merits of the British and US health care systems. After all, a similar map could be presented along the Red Line or Orange Line routes in Boston. I offer it mainly to express my appreciation of the willingness to be open and present numbers like this so the public can fully engage in the improvement process at the NHS.