Question

Estimated percentage of cancer cases caused by identifiable and/or potentially preventable factors

Answer 1

Doll and Peto (21) showed that 75–80% of cancer cases diagnosed in the USA in 1981 might have been prevented by lifestyle changes. According to a 1997 estimate, approximately 30–40% of cancer cases worldwide were preventable by feasible dietary means (http://www.dietandcancerreportorg/?p=ER).