Methodological issues in international comparison of interval breast cancers
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چکیده
منابع مشابه
Methodological issues of confounding in analytical epidemiologic studies
Background: Confounding can be thought of as mixing the effect of exposure on the risk of disease with a third factor which distorts the measure of association such as risk ratio or odds ratio. This bias arises because of complex functional relationship of confounder with both exposure and disease (outcome). In this article, we provided a conceptual framework review of confounding issues in epi...
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International donor agencies and governments of developing countries are seeking ways to increase the involvement of project beneficiaries in the design and management of development projects. However, very little systematic evidence is available on the potential costs and benefits of community participation (CP). The evaluation of CP is complicated by a division between advocates of efficiency...
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Delphi is a powerful technique used to seek answers to appropriate questions. The purpose of this paper is to provide an overview of the Delphi technique as a research method. This paper discusses the scientific merit of the Delphi technique by investigating on 41 studies of Journal of Agricultural Education from 1981 to 2013, and 2 studies of Journal of Agricultural Science and Technology. The...
متن کاملBreast density as a predictor of mammographic detection: comparison of interval- and screen-detected cancers.
BACKGROUND Screening mammography is the best method to reduce mortality from breast cancer, yet some breast cancers cannot be detected by mammography. Cancers diagnosed after a negative mammogram are known as interval cancers. This study investigated whether mammographic breast density is related to the risk of interval cancer. METHODS Subjects were selected from women participating in mammog...
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heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
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ژورنال
عنوان ژورنال: International Journal of Cancer
سال: 2006
ISSN: 0020-7136,1097-0215
DOI: 10.1002/ijc.21941