Term
|
Definition
Attack rate in the exposed = A / (A + B)
On the 2x2 table |
|
|
Term
|
Definition
Attack rate in the unexposed = C / (C + D)
on the 2x2 table |
|
|
Term
Cumulative Incidence Equation (with no adjustment for withdrawls) |
|
Definition
number of new cases
initial number in population
|
|
|
Term
| Cumulative Incidence Rate (with adjustment for withdrawls) |
|
Definition
number of new cases
initial NAR - 1/2 withdrawls
|
|
|
Term
|
Definition
number of new cases
animal time
|
|
|
Term
|
Definition
number of new cases
(ave.# at risk)*(ETC)
|
|
|
Term
|
Definition
number ill
number of total population in reference unit
|
|
|
Term
|
Definition
number of new cases*10
true population at risk
true population at risk= total population - primary cases
|
|
|
Term
| Overall Death Rate Equation |
|
Definition
reported deaths
mean population
|
|
|
Term
|
Definition
apparent prevalence + specificity - 100%
sensitivity + specificity - 100% |
|
|
Term
| Standardized Mortality Rate |
|
Definition
observed rate
expected rate
|
|
|
Term
|
Definition
|
|
Term
|
Definition
True -
Total Not Sick *100% |
|
|
Term
|
Definition
|
|
Term
|
Definition
False +
Total Not Sick *100%
|
|
|
