Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Small-Sample Properties of Odds Ratio Estimators Under Multiple Matching in Case-Control Studies.
Author Ejigou., A. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;Addis Ababa Univ. (Ethiopia).
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/076; EPA-R-812483;
Stock Number PB90-245507
Additional Subjects Biostatistics ; Ratios ; Estimates ; Bias ; Statistical analysis ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB90-245507 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 12/03/1990
Collation 11p
In epidemiologic studies, attempts at the assessment of effects of interest with possible risk factors, with suitable adjustments for confounding variables, are often made. The research provides one effective way of dealing with this problem that has well characterized properties even in small samples. The procedures are demonstrated to be better than others currently available, and can be applied directly in analyzing existing Environmental Protection Agency (EPA) epidemiologic data. Small sample properties of old and new odds ratio estimators are studied with regard to bias and mean squared error using Monte Carlo experiments. Their performances in interval estimation are also compared. A new and simple estimator is found to perform better than almost any other estimator, including the conditional likelihood estimator, both for point and interval estimation for a wide range of sample sizes.