Publication

A study of cancer mortality in the USA

1996
Conference Papers

Abstract

We have at our disposal observations relating to the mortality due to different types of cancer and we wish to compare them with a theoretical model. The usual models lead to increased mortality with increasing age, instead of the drop which is observed after eighty. There are two reasons for the drop in mortality at high age. The first one is called "competing risk"; the older subjects can die from many other causes, even if they have the cancer under study. The second reason could be a protective effect in a proportion of the population.

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1996
Conference Papers

Abstract

Official source

Related concepts (32)

Mortality rate

Mortality rate, or death rate, is a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of deaths per 1,000 individuals per year; thus, a mortality rate of 9.5 (out of 1,000) in a population of 1,000 would mean 9.5 deaths per year in that entire population, or 0.95% out of the total.

Cancer

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. While these symptoms may indicate cancer, they can also have other causes. Over 100 types of cancers affect humans. Tobacco use is the cause of about 22% of cancer deaths.

Cancer research

Cancer research is research into cancer to identify causes and develop strategies for prevention, diagnosis, treatment, and cure. Cancer research ranges from epidemiology, molecular bioscience to the performance of clinical trials to evaluate and compare applications of the various cancer treatments. These applications include surgery, radiation therapy, chemotherapy, hormone therapy, immunotherapy and combined treatment modalities such as chemo-radiotherapy.

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A study of cancer mortality in the USA

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