本文所指伤亡事故，是指交通伤亡事故、生产性死亡事故、中毒伤亡事故、跌倒伤亡事故、各类火灾死亡事故和其他在道路、生产场所、家中和社区的伤亡事故。2002年，美国的各类伤亡事故（除故意伤害和暴力）中，死亡人数共计98000人。自从1924年美国国家安全生产委员会有完整的统 In this paper, casualties refer to traffic casualties, productive death incidents, poisoning casualties, falling casualties, all kinds of fire fatal accidents and other casualties in roads, production sites, homes and communities. In 2002, the total number of deaths in all types of casualties in the United States (except for willful injuries and violence) totaled 98,000. Since 1924 the U.S. National Security Production Commission has a complete system