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Medicine and Health Sciences Commons

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Aged

University of Nebraska Medical Center

2015

Neoplasms

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Full-Text Articles in Medicine and Health Sciences

Invariant Characteristics Of Carcinogenesis., Simon Sherman, Nirosha Rathnayake, Tengiz Mdzinarishvili Oct 2015

Invariant Characteristics Of Carcinogenesis., Simon Sherman, Nirosha Rathnayake, Tengiz Mdzinarishvili

Journal Articles: Eppley Institute

Carcinogenic modeling is aimed at mathematical descriptions of cancer development in aging. In this work, we assumed that a small fraction of individuals in the population is susceptible to cancer, while the rest of the population is resistant to cancer. For individuals susceptible to cancer we adopted methods of conditional survival analyses. We performed computational experiments using data on pancreatic, stomach, gallbladder, colon and rectum, liver, and esophagus cancers from the gastrointestinal system collected for men and women in the SEER registries during 1975-2009. In these experiments, we estimated the time period effects, the birth cohort effects, the age effects …