Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Adjustment of incidence rates for migration in indirect ecologic studies /
Author Chiang, Chin Long, ; Conforti, P. M.
Other Authors
Author Title of a Work
Conforti, Paul M.
CORP Author California Univ., Berkeley. School of Public Health.;Health Effects Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency,
Year Published 1984
Report Number EPA/600/1-84/017; EPA-C-1492NAEX; EPA-C-2519NAET
Stock Number PB85-124139
Subjects Environmentally induced diseases. ; Airborne infection. ; Communicable diseases--Transmission.
Additional Subjects Research project ; Asbestos ; Potable water ; Toxicology ; Population migrations ; Population growth ; Ecology ; Malignant neoplasms ; Environmental surveys ; Epidemiology ; Statistical analysis ; Morbidity ; Stochastic processes ; Cancer
Library Call Number Additional Info Location Last
NTIS  PB85-124139 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 80 pages : illustrations
The overall objective of this research program was to develop a method for adjusting incidence rates for migration in studies relating environmental agents to diseases with long latent periods. Various methods of estimating migration and population change are considered. An example of a situation necessitating this adjustment is described. Cancer incidence rates were compared for census tracts with varying levels of asbestos in drinking water. Since cancer has a long latent period, recent in-migrants would not have been exposed for sufficient periods of time to be at risk for cancer. Unless the in-migrants were equally distributed across census tracts, an analysis of the relationship between asbestos and cancer based on incidence rates would be biased. This report reviews a number of measures of migration and population change as well as stochastic models of migration and stochastic models of population growth. Migration data available through the Census of Population and Housing of the Bureau of the Census are described. A method is developed that uses these data to estimate migration by census tract. This method is then applied to data from a U.S. Environmental Protection Agency supported project on the relationship between ingested asbestos and cancer and the results compared to the original analysis.
Caption title. "Nov. 1984." "EPA-600/1-84-017." "Contract Numbers C1492NAEX and C2519NAET." Microfiche.