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改革开放以来,经济迅速发展,食品生产经营企业不断增加,卫生监督机构对食品卫生监督监测力度逐年加强,不同品种的卫生质量不相同,不同年份的监测品种频次的构成比有很大差别,其监测合格率常常受到构成比因素的影响,因此存在如何准确、合理比较表达合格率的问题,笔者采用标准化法对双流县1987～1995年8类食品的卫生监测合格率进行标准化处理,结果发现各年间合格率,各类食品合格率及其顺位在经标准化后发生变化。
Since the reform and opening up, the rapid economic development, food production and operation of enterprises continue to increase, health supervision agencies to strengthen supervision and monitoring of food hygiene year by year, different types of health quality is not the same, the monitoring frequency of different years the composition ratio is very different, the Therefore, there is an issue of how to accurately and reasonably compare the passing rate of expression. The standardization method was adopted to standardize the health monitoring rate of 8 kinds of foodstuffs in Shuangliu County from 1987 to 1995. As a result, The passing rate during the year, the passing rate of all kinds of food and its sequence change after standardization.