摘要:Diving-related morbidity and mortality data are usually scant and difficult to gather due to the variety and magnitude of diving activity. A joint study by Divers Alert Network and Public Health Agency of Canada undertook a 10 years' longitudinal study [1] to investigate the morbidity and mortality among recreational divers in the US and Canada. The findings demonstrate a low prevalence of diving-related injuries. In Canada and the USA,only one out of every 10,000 Emergency Department (ED) presentations was found to be due to a self-contained underwater breathing apparatus (SCUBA) diving-related injury. However,there were 47 deaths for every 1000 ED presentations for scuba injuries. This relatively high figure illustrates the peculiarities of the SCUBA diving environment and the limitations of providing definitive healthcare to victims of injuries related to SCUBA diving. There were 1.8 deaths per million recreational dives,and mortality in scuba diving is nonetheless relatively low.