Ecolab teams up service and new product offerings

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• 关键词：universal potential energy function ; field equation ; phase factor ; derivative renormalization ; linear thermal expansion coefficient ; Young's modulus ; force constant
• 刊名：Focus on Surfactants
• 出版年：2005
• 出版时间：January 2005
• 年：2005
• 卷：2005
• 期：1
• 页码：6-7
• 全文大小：40 K

文摘

Members of the Cancer Epidemiology Work Group within the German Epidemiology Society and Dr Antes of the German Cochrane Center will present a review of the epidemiological aspects of cancer screening programs.

Prior to the implementation of a cancer screening program, there should be clear evidence from randomized controlled trials showing a disease-specific mortality reduction by screening. For target entities with the potential to reduce incident invasive cancers – such as cervical and colorectal cancer – the search of evidence should also include cancer incidence reduction.

Monitoring of the screening program is essential and should include: the test, the assessment of test-positives, therapy or other interventions, and a cause of death evaluation. It is important to show that the benefit of a mortality reduction is not outweighed by adverse screening effects.

In the past, German cancer screening activities were lacking essential components of screening programs like a central unit inviting the target population, standardized documentation and reporting as well as independent audits.

The new Mammography Screening Program for the first time offers a screening test in Germany that is embedded in a quality monitoring program evaluating at least intermediate outcome parameters.