... summarizes the findings with respect to lung cancer and exposure to tobacco smoke. In total, 34 599 cases of lung cancer in the UK (86% of the total) were due to exposure to tobacco smoke in 2010, the ... absence of smoking, by applying the age- and sex-specific never-smoker rates (in Figure 1) to the population of the UK in 2010. The number of cases attributable to smoking (and the attributable fraction) ... 1. The fraction of cancer attributable to lifestyle and environmental factors in the UK in 2010 IntroductionDM Parkin*,11Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine,...