Flashcards in *Intestinal problems (lecture 10) Deck (12)
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1
What is population screening?
a test being offered to all individuals in an eligible group, usually defined by age, as part of an organised program.
2
What is opportunistic screening?
Opportunistic screening happens when someone asks their doctor or health professional for a check or test, or a check or test is offered by a doctor or health professional
3
Key screening programmes in the UK? (4)
Cervical cancer
Breast cancer
Bowel cancer
AAA
4
What is being taken into consideration when evaluating the reliability of a screening tool?
Repeatability of test
Repeatability of the interpretation
5
What is considered when evaluating validity of a screening tool?
Sensitivity
Specificity
Positive predictive value
Negative predictive value
6
What is the sensitivity of a screening tool?
Proportion of those who have the disease who are correctly identified by a +ve test
7
What is the specificity of a screening tool?
Proportion of those who do not have the disease who are correctly identified by a -ve test
8
What is the positive predictive value of a screening tool?
Proportion of those who test positive who actually have the disease
9
What is the negative predictive value?
Proportion of those who test negative who actually do not have the disease
10
What is the uptake for a screening programme?
the number taking part in a voluntary programme
11
What is the yield for a screening programme?
number of previously undiagnosed cases picked up by a screening test or programme
12
