'Since the end of the war, concerns have been expressed about the health of personnel who were deployed to the Persian Gulf. Several countries have examined the mortality of those who deployed. This included a Canadian study of mortality with a nine-year follow-up period (1991-1999). That study found Canadians deployed to the Gulf War had similar mortality rates as Canadian military not deployed to the Gulf. This report describes the results of subsequent analyses, based on a 24-year follow-up (1991-2014). The main objective of this study was to determine if Canadian military personnel deployed to the Gulf between August 24,1990 and October 1,1991 were at a higher risk of death after their return to Canada than other members of the military who were not deployed to the Persian Gulf or the general Canadian public'--Executive Summary.