a. Calculate the total
preclinical phase, in years, of this woman's cervical cancer.
Assume that she did not get screened.
a. 30 years
b. 40 years
c. 10 years
d. 15 years
e. 20 years
b. Calculate the detectable preclinical phase of this woman's
cervical cancer. Assume that she did not get screened.
a. 30 years
b. 10 years
c. 20 years
d. 15 years
e. 40 years
c. Calculate the lead time for this patient.
a. 20 years
b. 10 years
c. 30 years
d. 15 years
e. 60 years
Total preclinical phase includes biological onset of disease to symptoms of the disease.
Biological onset = 30 years
If no screening and symtomps occurs cancer detected = 60 years
60-30= 30 years of total preclinical phase
Ans a-30 year
2- detectable preclinical phase is the phase in which diagnosis should be made from the time of screening to the symptoms shows
Cancer detected by the screening = 40 years
Symtomps shows if not screen = 60 years
60-40= 20 years
Ans B- 20 years
3- lead time =The gain from screening for disease is the difference between the time a disease would have been diagnosed by clinical symptoms and when it is detected with a screening procedure. This is the lead time.
Cervical cancer begins =30 years
Cancer detect in screening = 40 years
Lead time =40-30= 10 years.
Hope you found this helpful.
a. Calculate the total preclinical phase, in years, of this woman's cervical cancer. Assume that she...
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