Letter

Passive smoking

Tobacco industry publishes disinformation

BMJ 2003; 327 doi: 10.1136/bmj.327.7413.502-c (Published 28 August 2003)
Cite this as: BMJ 2003;327:502.4

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  1. Michael J Thun, vice president, epidemiology and surveillance research (mthun@cancer.org)
  1. American Cancer Society, 1599 Clifton Road, Atlanta, GA 30329-4251, USA

    Editor–The American Cancer Society does not agree with the conclusions of Enstrom and Kabat in their analysis of environmental tobacco smoke in the cancer prevention study I (CPS-I).1 Their study is fatally flawed because of misclassification of exposure. The cancer prevention study was started by the society in 1959 to measure the effects of active smoking, …

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