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在两种地区为什么对于所有癌症总体来说有11%的生存率差异,而对于最普遍发生的任何一种癌症生存率的最大差异却是8%?
线索:
哪种癌症引起死亡最多?
哪些社会地位的人有较高的患这类癌症的危险?
相关阅读:
Coleman MP et al. Cancer
survival trends in England and Wales 1971-1995: deprivation and
NHS Region. Series SMPS No. 61.
London: The Stationery Office, 1999.
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