Levine P H, McKay F W, Connelly R R
Int J Cancer. 1987 Feb 15;39(2):133-7. doi: 10.1002/ijc.2910390202.
We examined the geographic pattern of nasopharyngeal cancer (NP cancer) mortality in the United States using economic sub-regions (ESRs) as the basis for analysis. The distribution of 15,145 deaths from NP cancer over the years 1950-1979 revealed clustering in the 119 ESRs that was not detected in analyses of distribution by the 48 states, 506 state economic areas or 3,056 counties or combinations of counties of the coterminous United States. NP cancer mortality among white males was concentrated on the south-east Atlantic and Gulf coasts. This newly described pattern is not due to any recent changes in mortality rates and should provide leads to further epidemiologic study.
我们以经济子区域（ESR）为分析基础，研究了美国鼻咽癌死亡率的地理分布模式。1950年至1979年期间15145例鼻咽癌死亡病例的分布显示，在119个经济子区域中存在聚集现象，而在美国本土48个州、506个州经济区或3056个县或县组合的分布分析中未检测到这种聚集现象。白人男性的鼻咽癌死亡率集中在东南大西洋和墨西哥湾沿岸。这种新描述的模式并非由于死亡率的任何近期变化，应为进一步的流行病学研究提供线索。
