The aims of this project are to develop and apply competing hazard models representing the age pattern of mortality throughout life, and parity survivorship after a previous birth. The mortality model to be investigated is a five-parameter model taken from the ecological literature. The parity survivorship model is based on the Erlangian distribution (a special case of the Gamma distribution). Simplex methods of fitting hazard functions to demographic data by least squares will be developed to reduce the computer time necessary to apply these models and to increase the accuracy of the fit. The accuracy and statistical stability of both models with small sample sizes will then be evaluated using simulated data. Applications to be undertaken include: 1. Determination of the range of parameter values represented in a large worldwide sample of life tables, and development of a system of model life tables based on this range of variation, 2. An investigation of the relationship between cause of death structure and the age pattern of mortality, using a worldwide sample of full and decremented life tables, 3. An analysis of the North American Hutterite population to determine the influence of infant mortality on parity intervals, and the influence of level of inbreeding on demographic rates.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Unknown (R23)
Project #
1R23HD022981-01
Application #
3448452
Study Section
Social Sciences and Population Study Section (SSP)
Project Start
1986-09-01
Project End
1988-08-31
Budget Start
1986-09-01
Budget End
1987-08-31
Support Year
1
Fiscal Year
1986
Total Cost
Indirect Cost
Name
State University of New York at Albany
Department
Type
Schools of Arts and Sciences
DUNS #
City
Albany
State
NY
Country
United States
Zip Code
12222