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作者于1997年6月随机抽取了上海市1200名15～70岁居民，对他们有关食品卫生的知识、态度、行为进行了访问调查，采用秩和检验的方法对不同性别、年龄、文化组间的差别进行统计分析，寻找出了上海市居民食品工生方面的主要行为危险因素及其目标人群，为上海市预防和控制慢性病制定干预措施、评估干预效果提供了科学的依据。
In June 1997, the authors randomly selected 1200 residents aged 15-70 in Shanghai to investigate their knowledge, attitudes and behavior about food hygiene. The rank-sum test was used to test the knowledge of food hygiene among different sexes, ages, Statistical analysis to find out the main behavioral risk factors of Shanghai residents in food hygiene and its target population for the prevention and control of chronic diseases in Shanghai to develop interventions to assess the effect of intervention provides a scientific basis.