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Table 4 Outcomes for a test if negative 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 1 Result Test 2 Result Elective Procedure Observed Disease Status
+ + -- -- +
+ - + -- +
+ - - Yes +
+ - - No -
- + + Yes -
- + + No -
- + - 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.