In the most affluent districts average life expectancy rose by 95.2 days to 83.3 years, of which 70.4 years were spent in good health.

Teenage pregnancy rates in poorer areas were six times those in more affluent districts.

Worryingly, more than half of schools in poorer areas report finding it tough to attract good teachers, compared to just a third in more affluent districts.

With the flight of some residents came disrepair and crime for what once was one of the most affluent districts of the city.

She believed in a great, free public education, but that even in middle-class and more affluent districts public noncharter schools are not as good as parents think they are.