Table 1.
Gold standard (Research assistants data) | Test results (CHW data) | |
---|---|---|
Positive (+) | Negative (−) | |
Positive (+) | a | b |
Negative (−) | c | d |
Sensitivity = a/a + b
Specificity = d/c + d
Predictive value = a/a + c
Gold standard (Research assistants data) | Test results (CHW data) | |
---|---|---|
Positive (+) | Negative (−) | |
Positive (+) | a | b |
Negative (−) | c | d |
Sensitivity = a/a + b
Specificity = d/c + d
Predictive value = a/a + c