See also Biostatistics and Prevention. Incidence X Duration of Disease. Randomized Controlled Clinical Trial a group of patients is randomized into an experimental group and a control group. See also glossary of study designs. RR is used in randomized trials and cohort studies.
Sensitivity is the proportion of people with disease who have a positive test.
See also section on SpPins and SnNouts. Specificity is the proportion of people free of a disease who have a negative test. Therefore, if a person has a fluid wave, it is likely that the person has acites.