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Table 1 Outcomes for a single-test cancer screening trial

From: Estimates of sensitivity and specificity can be biased when reporting the results of the second test in a screening trial conducted in series

True Disease Status Test 2 Result Elective Procedure Observed Disease Status
+ + -- +
+ - Yes +
+ - No -
- + Yes -
- + No -
- - Yes -
- - No -
  1. A double dash indicates an event that will not occur under the assumptions of our model. Cases misclassified as non-cases.