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Smoking & death in British doctors aged 70-89 during the 1950s, 1970s & 1990s: large improvement among non-smokers wholly nullified among cigarette smokers. Period studied Prob. survival from 70-90 (& mean birth year) Non-smoker Cigt Smoker
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Smoking & death in British doctors aged 70-89 during the 1950s, 1970s & 1990s:large improvement among non-smokers wholly nullified among cigarette smokers Period studied Prob. survival from 70-90 (& mean birth year) Non-smoker Cigt Smoker 1950s (1875) 12% 10% 1970s 20% 7% 1990s (1915) 33% 7% Doll, Peto et al. BMJ 26/06/04