Biostatistics And Epidemiology 2

Front 1

sensitivity

Back 1

the %age of people who have the disease who test positive
(true positives)/(true positives + false negatives)
gives false negative rate (1-sensitivity)

Front 2

specificity

Back 2

%age of people who don't have the disease who test negative
(true negatives)/(true negatives + false positives)
gives false positive rate (1-specificity)

Front 3

lead time bias

Back 3

the erroneous inference of reduced mortality resulting merely from earlier detection of a disease, and not from greater effectiveness of earlier treatment

Front 4

length bias

Back 4

the erroneous inference of reduced mortality associated with screening caused by the disproportionate detection of less aggressive disease among screened patients

Front 5

positive predictive value

Back 5

% of people who test positive who actually have the disease
(true positives)/(true positives + false positives)

Front 6

pre-test probability

Back 6

the prevalence of the disease

Front 7

screening

Back 7

procedures performed to detect asymptomatic disease.