Now showing items 51-60 of 245
Measurement of progression in Alzheimer's disease: a clinician's perspective
(John Wiley & Sons, Ltd., 2000-06-15)
Patients with Alzheimer's disease (AD) and their families must confront two fundamental truths. First, AD is a uniformly progressive disease that ultimately results in debilitating cognitive impairment. Second, although ...
Bias reduction for risk ratio and vaccine effect estimators
(John Wiley & Sons, Ltd., 2001-06-15)
We examine the structural bias for established estimators of vaccine effects on susceptibility and for newer estimates of vaccine effects on infectiousness. We then propose and analyse new bias corrections for vaccine ...
Genetic information, obesity, and labor market outcomes
(John Wiley & Sons, Ltd., 2008-09)
Economists have argued that obesity may lead to worse labor market outcomes, especially for women. Empirical methods to test this hypothesis have not thus far adequately controlled for the endogeneity of obesity. We use ...
Joint modeling compliance and outcome for causal analysis in longitudinal studies
(CRC pressWiley Periodicals, Inc., 2014-09-10)
Hierarchical multiple informants models: examining food environment contributions to the childhood obesity epidemic
(Wiley Periodicals, Inc.Addison‐Wesley, 2014-02-20)
A global logrank test for adaptive treatment strategies based on observational studies
(American Psychiatric Publishing, IncWiley Periodicals, Inc., 2014-02-28)
Baseline patient characteristics and mortality associated with longitudinal intervention compliance
(John Wiley & Sons, Ltd., 2007-12-10)
Lin et al. ( http://www.biostatsresearch.com/upennbiostat/papers/ , 2006) proposed a nested Markov compliance class model in the Imbens and Rubin compliance class model framework to account for time-varying subject ...
New variable selection methods for zero‐inflated count data with applications to the substance abuse field
(John Wiley & Sons, Ltd., 2011-08-15)
Zero‐inflated count data are very common in health surveys. This study develops new variable selection methods for the zero‐inflated Poisson regression model. Our simulations demonstrate the negative consequences which ...
Semiparametric regression analysis for alternating recurrent event data
(Methuen and Company, Ltd.Wiley Periodicals, Inc., 2018-03-15)
A multiple imputation strategy for sequential multiple assignment randomized trials
(Springer‐Verlag, Inc.Wiley Periodicals, Inc., 2014-10-30)
Sequential multiple assignment randomized trials (SMARTs) are increasingly being used to inform clinical and intervention science. In a SMART, each patient is repeatedly randomized over time. Each randomization occurs at ...