What is the estimated sensitivity of the test? 

General

Suppose a new test is proposed to identify patients with a specific condition.

One specimen is obtained from each of 220 subjects in the population to whom the test will be applied. Fifty-one (51) subjects have the condition and 169 do not, according to a gold standard used to assess the presence of the condition (referred to as a reference standard below). The following results are obtained:

Table 7.5: Comparison of a new test with a reference standard

 

Reference standard Condition Condition absent Total present New test 44 45 7 168 175 Total 169 220 51