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我科于1981年9月采用WHO 1977年出版的《口腔健康调查基本方法》一书中所介绍的标准及方法,对北京市中、小学学生进行抽样调查,其中城市学校12及15岁学生的口腔检查为与WHO口腔流行病学专家Dr.David E.Barmes共同完成的。现将调查标准、结果及体会介绍如下: 一、抽样方法及样本含量 WHO推荐了几种抽样方法,为使样本具有广泛的代表性,我们采用分层抽样方法。抽样时考虑了以下几个因素:
In September 1981, our department used the standards and methods described in the “Basic Methods of Oral Health Surveys” published by the WHO in 1977 to conduct a sample survey of primary and secondary school students in Beijing, of which 12 and 15-year-old urban students Oral examination was done in collaboration with WHO Dental Epidemiologist Dr. David E. Barmes. Now the survey criteria, the results and experience are described below: First, the sampling method and sample content WHO recommended several sampling methods, in order to make the sample has a wide range of representation, we use stratified sampling method. The following factors were taken into account when sampling: