Joseph C. Gardiner

Impairments of Memory and Learning in Older Adults Exposed to Polychlorinated Biphenyls Via Consumption of Great Lakes Fish (2008)

Susan L. Schantz, Donna M. Gasior, Elena Polverejan, Robert J. Mccaffrey, Anne M. Sweeney, Harold E. B, ...

An association between in utero polychlorinated biphenyl (PCB) exposure and impaired childhood intellectual functioning has been reported, but the potential impact of PCB exposure during adulthood on...

Estimating medical costs from a transition model (2008)

Gardiner, Joseph C., Liu, Lin, Luo, Zhehui

Nonparametric estimators of the mean total cost have been proposed in a variety of settings. In clinical trials it is generally impractical to follow up patients until all have responded, and...

Changes in practice patterns affecting in-hospital and post-discharge survival among ACS patients (2006)

Stommel, Manfred, Olomu, Ade, Holmes-Rovner, Margaret, Corser, William, Gardiner, Joseph C

Abstract Background Adherence to clinical practice guidelines for the treatment of specific illnesses may result in unexpected outcomes, given that multiple therapies must often be given to patients...

Asymptotic Normality of a Variance Estimator of a Linear Combination of a Function of Order Statistics. Revision, (2002)

Gardiner,Joseph C., Sen,Pranab Kumar

An estimator of the asymptotic variance of (a randomly stopped) linear combination of a function of order statistics is considered and its asymptotic normality is studied under appropriate regularity...

Risk-Efficient Estimation of the Mean Exponential Survival Time under Random Censoring, (2002)

Gardiner,Joseph C., Susarla,V.

The paper proposes a sequential estimator theta of the parameter theta of an exponential distribution when the data is censored. Without any further conditions, it is shown that theta is...

Weak Convergence of a Bayesian Nonparametric Estimator of the Survival Function under Progressive Censoring, (1998)

Gardiner,Joseph C., Susarla,V.

A nonparametric Bayesian estimator F (circumflex) of the survival function F constructed from time-sequential progressively censored observations is found to subsume several estimators of F utilized...

A Nonparametric Estimator of the Survival Function under Progressive Censoring, (1998)

Gardiner,Joseph C., Susarla,V.

A nonparametric estimator of the survival function F is constructed from time-sequential progressively censored data when F is a Dirichlet process. The estimator is shown to encompass several known...

A class of estimators of the survival function from interval-censored data (1996)

Wang, Zhiming, Gardiner, Joseph C.

A model of interval censorship of a failure time T is considered when there is only one inspection time Y. The observable data are n independent copies of the pair $(Y, \delta)$, where $\delta = [T...

A longitudinal examination of factors related to changes in serum polychlorinated biphenyl levels.

Tee, P Grace, Sweeney, Anne M, Symanski, Elaine, Gardiner, Joseph C, Gasior, Donna M, Schantz, Susan L

Consumption of sport-caught fish from the Great Lakes is a recognized source of human exposure to polychlorinated biphenyls (PCBs). Understanding temporal changes in PCB body burden is crucial for...

Practice Guidelines and Late-Life Depression Assessment in Long-Term Care

Banazak, Deborah A, Mullan, Patricia B, Gardiner, Joseph C, Rajagopalan, Srikanth

To determine how well nursing home physicians believe they can detect and treat depression, we conducted a national survey, eliciting a 63% response rate. More than 75% of respondents believed they...

A longitudinal examination of factors related to changes in serum polychlorinated biphenyl levels.

Tee, P Grace, Sweeney, Anne M, Symanski, Elaine, Gardiner, Joseph C, Gasior, Donna M, Schantz, Susan L

Consumption of sport-caught fish from the Great Lakes is a recognized source of human exposure to polychlorinated biphenyls (PCBs). Understanding temporal changes in PCB body burden is crucial for...

Practice Guidelines and Late-Life Depression Assessment in Long-Term Care

Banazak, Deborah A, Mullan, Patricia B, Gardiner, Joseph C, Rajagopalan, Srikanth

To determine how well nursing home physicians believe they can detect and treat depression, we conducted a national survey, eliciting a 63% response rate. More than 75% of respondents believed they...

Estimating mean hospital cost as a function of length of stay and patient characteristics

Elena Polverejan, Joseph C. Gardiner, Cathy J. Bradley, Margaret Holmes-Rovner, David Rovner

Statistical models have been used to assess the influence of clinical and demographic factors on hospital charge and length of stay (LOS). Hospital costs constitute a significant proportion of...

Considerations When Using Discriminant Function Analysis of Antimicrobial Resistance Profiles To Identify Sources of Fecal Contamination of Surface Water in Michigan▿

Kaneene, John B., Miller, RoseAnn, Sayah, Raida, Johnson, Yvette J., Gilliland, Dennis, Gardiner, Joseph C.

The goals of this study were to (i) identify issues that affect the ability of discriminant function analysis (DA) of antimicrobial resistance profiles to differentiate sources of fecal...

Longitudinal analysis of censored medical cost data

Onur Başer, Joseph C. Gardiner, Cathy J. Bradley, Hüseyin Yüce, Charles Given

This paper applies the inverse probability weighted (IPW) least-squares method to estimate the effects of treatment on total medical cost, subject to censoring, in a panel-data setting. IPW pooled...

Power and sample assessments for tests of hypotheses on cost-effectiveness ratios

Joseph C. Gardiner, Marianne Huebner, James Jetton, Cathy J. Bradley

We address the issue of statistical power and sample size for cost-effectiveness studies. Tests of hypotheses on the cost-effectiveness ratio (CER) are constructed from the net cost and incremental...

Nonparametric estimation of regression parameters from censored data with a discrete covariate

Rahbar, Mohammad H., Gardiner, Joseph C.

A noniterative method of estimation is presented in a simple linear regression model where the independent variable (covariate) assumes only a finite number of values and the dependent variable...

On pricing of market-indexed certificates of deposit

Gardiner, Joseph C., Levental, Shlomo

A market-indexed certificate of deposit (MICD) entitles its holder, over the chosen length of maturity, to the greater of either a prespecified guaranteed return rate or to a fixed proportion of the...