The table below shows results obtained in a new screening test for diabetes. 10,000 people were screened. The cut-off level employed was 180mg of blood glucose per 100 ml. Everyone scoring above this level was classified as positive for diabetes. Everyone scoring below this level was classified as negative for diabetes. These results were compared to a “gold standard” diagnostic test for diabetes that is considered to be completely valid. Data of screening test and gold standard results "Gold-Standard" Test Screening Test Disease No Disease Total Positive 125 25 150 Negative 375 9475 9820 Total 500 9500 10000

The table below shows results obtained in a new screening test for diabetes. 10,000 people were screened. The cut-off level employed was 180mg of blood glucose per 100 ml. Everyone scoring above this level was classified as positive for diabetes. Everyone scoring below this level was classified as negative for diabetes. These results were compared to a “gold standard” diagnostic test for diabetes that is considered to be completely valid. Data of screening test and gold standard results "Gold-Standard" Test Screening Test Disease No Disease Total Positive 125 25 150 Negative 375 9475 9820 Total 500 9500 10000

	"Gold-Standard" Test
Screening Test	Disease	No Disease	Total
Positive	125	25	150
Negative	375	9475	9820
Total	500	9500	10000