cohort life table

In order to carry out these cohort life tables we have used dendrochronological techniques to date dead trees.

Cohort life tables are little used for humans because:

Annual mortality of root sprouts was estimated by static and cohort life table analyses.

Following is an example of a cohort life table based on field data from Vargas and Nishida (1980).

Key words: demography, cohort life table, grape powdery mildew, net reproductive rate, population growth rate.

A cohort life table, often referred to as a generation life table, is used to represent the overall mortality rates of a certain population's entire lifetime.

Cohort life tables show the probability of death of people from a given cohort (especially birth year) over the course of their lifetime.

Cohort life tables were constructed and population parameters determined for Uncinula necator (Schw.)

May be studied by current or cohort LIFE TABLE methods.

A cohort life table is more frequently used because it is able to make a prediction of any expected changes in mortality rates of a population in the future.

"Life table" primarily refers to period life tables, as cohort life tables can only be constructed using data up to the current point, and distant projections for future mortality.

A cohort life table tracks organisms through the stages of life, while a static life table shows the distribution of life stages among the population at a single point in time.

There are two kinds of life table: cohort and current.2 Cohort life tables (which require longitudinal data) are based on the mortality rates of a group of individuals tracked over time.

Once the cohort probabilities have been established, a cohort life table can be constructed; a birth cohort (or radix) of arbitrary size, say 10 000, is depleted at successive ages according to the cohort death probabilities, q.

They can apply discount rates, choose a different life table (Canadian period life table, Canadian cohort life table or the standard life table from the World Health Organization), or use a different population such as a Canadian province.