Description of Hypothetical Simulation of Exposure with Latency Period:

If there is a large risk of mortality due to exposure to Love Canal Chemicals, then some people will not have survived to 1978 to enter the Love Canal Cohort. The extent of this mortality will depend on the latency period. The latency period is defined as the time from exposure to the first effect on mortality rates. We illustrate the effect of latency using a simulation. The Figures describe results from a hypothetical simulation of the distribution of Exposure (person years in 1942-1954) for Persons in the Love Canal Follow-up Cohort. This distribution is compared with the exposure distribution for those who died prior to 1978. We assume that the Risk Rate=5 for all simulations. Latency periods are taken as 0 years, 10 years, and 20 years.

Examples

Latency=0 yrs

Latency=10yrs

Risk=20yrs