What is the shape of the dose-response curve for all-cause mortality?
5) How is the relation between physical activity and all-cause mortality influenced by adiposity levels? Question 1. What data do we have on the topic? In extracting data from the CDC database the group attempted to be as inclusive as possible. The subcommittee selected all age groups, all the study designs that were there, all activity types and obviously the health outcome all-cause mortality. This search resulted in 83 studies of which 10 were excluded. The studies were excluded based on the following rationale: • Three excluded because of a relationship to adverse events which will be covered in another chapter by the Committee. • Three physical fitness studies were excluded because they did not provide direct information on the amounts and kinds of activity, etc, which were relevant to our report. • Two cancer studies were excluded as that subject is covered by another subcommittee. • One study on the relationship between BMI and mortality stratified by physical activity levels wa