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In year of 1999, 4,458 women were screened for cervical cancer and 72 were found to have CIN 3 stage or above (diagnostic of carcinoma of the cervix or carcinoma-in-situ). The women who did not have cervical cancer were re-screened in 2004 and another 40 cases were diagnosed.
a) Explain the prevalence of the cervical cancer in 1999 and 2004?
b) Specify how many women were at the risk of developing the cervical cancer before being screened in
i) 1999, and
ii) 2004.
c) Describe the incidence of cervical cancer within these women? Is this a measure of cumulative incidence or incidence rate?
Assume that, on average, each of 30 women who were diagnosed along with cervical carcinoma did so half-way through during the five-year period.
d) Find the total number of person-years at the risk of developing cervical cancer at the time of five years.
e) State the incidence rate of cervical cancer in these women?
Biochemical feedback regulation or end product inhibition. What are the most general neurotransmitters in the brain.
Evaluate the sizes of the different digestive organs of the earthworm. Which organ is largest in the earthworm? How does its size make it well suited for its function.
In the year following the fires, wildflowers sprouted in all burned areas, closely followed in subsequent years by seedlings of the trees that normally grow in the area, such as aspens and lodge poles pines. What changes in the Ecosystem will take pl..
From a cell's point of view, what is the reason of a cell, and what is the purpose of a gene? From a gene's point of view (according to Dawkins), what is the purpose of a cell and what is the purpose of a gene.
In horse, black coat colour is influenced by the dominant allele (B) and chestnut coat colour by the recessive colour (b). Trotting gait is due to dominant gene (T), pacing gait to the recessive allele (t). What colour horse would you use to find out..
Which pair will have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?
In pea plants, allele for purple flowers (P) is dominant to the allele for white flowers (p). In a cross between the purple-flowered plant and the white-flowered plant, all 73 of the offspring plants had purple flowers. Which of the most likely descr..
While you measure the genotype frequencies of the population you get the following data. What will the frequency of Aa be in the next generation.
Earlier in 2010, the Pacific island nation of Samoa decided to switch from driving on the right to driving on the left. Why may these cause difficulties? Why is it complicated for a cell to change codon usage, say, switching a "stop" codon to a trypt..
While walking throughout a forest you notice that someone has carved his or her initials into the bark of a tree. The initials are exactly 1.5 meters from the ground. How far from grounds will the initials be next year and the year after that? Why? E..
Calculate how the permeability of each is altered when the pH is reduced to 1.0, a value typical of the stomach.How to demolish the function of this protein.
Describe how each functions, and outline how the organs work together to carry out the role of an organ system. What quantity of the purple flowered, short stem plants in the F2 are expected to be pure breeding. Illustrate the work.
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