1. When the screening cut-off point was lowered to a blood glucose value of 130 mg/dl, 106 of 182 persons who then tested positive were among the 10,824 persons who did not have diabetes. Come up with a new table based on the new cut-off. TRUE DIAGNOSIS TEST RESULT Positive Negative TOTAL Diabetic Not diabetic TOTAL 1.1 Compute the new sensitivity and specificity of the test based on the new cut-off level. 1.2 Compute the new % false negative and % false positive. 1.3 What effect do you get from lowering the screening cut-off point in terms of sensitivity and specificity?
1. When the screening cut-off point was lowered to a blood glucose value of 130 mg/dl, 106 of 182 persons who then tested positive were among the 10,824 persons who did not have diabetes. Come up with a new table based on the new cut-off. TRUE DIAGNOSIS TEST RESULT Positive Negative TOTAL Diabetic Not diabetic TOTAL 1.1 Compute the new sensitivity and specificity of the test based on the new cut-off level. 1.2 Compute the new % false negative and % false positive. 1.3 What effect do you get from lowering the screening cut-off point in terms of sensitivity and specificity?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. When the screening cut-off point was lowered to a blood glucose value of 130 mg/dl, 106
of 182 persons who then tested positive were among the 10,824 persons who did not have
diabetes. Come up with a new table based on the new cut-off.
TEST RESULT
Positive
Negative
TOTAL
TRUE DIAGNOSIS
Diabetic
Not diabetic
TOTAL
1.1 Compute the new sensitivity and specificity of the test based on the new cut-off level.
1.2 Compute the new % false negative and % false positive.
1.3 What effect do you get from lowering the screening cut-off point in terms of
sensitivity and specificity?
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