A note on the changing geography of cancer mortality within metropolitan regions of the United States.

An investigation made of the geography of cancer mortality rates within the most populous metropolitan regions of the United States and the New Jersey-New York-Philadelphia metropolitan corridor shows that during the early 1950s, as expected, central city counties has substantially higher cancer mortality rates, especially respiratory and digestive, than did suburbs. Two decades later, differences between the central cities and the suburbs had narrowed and sometimes disappeared.