International comparison of population-attributable fraction for excess body weight on cancer.

* Prevalence categorized for 25≤BMI<30, BMI≥30 from the 1996–1997 records of the National Health Insurance Cooperation; parenthesis represent each of 23≤BMI<25, BMI≥25 from 1992–1995 records of the National Health Insurance Cooperation, which were used for PAF calculation.
** Prevalence data for 1990 from pooled analysis of 6 prospective cohort studies, categorized BMI≥25 for overweight and obesity.
†Range of prevalence by age groups in 2000–2001, data from the Nation Diet and Nutrition Survey (ages 19–64)/Health Survey for England (ages >65) [27].
€PAF also includes contribution from cancers of endometrium, gastric cardia, liver, thyroid, and leukemia, myeloma, and non-Hodgkin's lymphoma.