Browsing Statistics and Actuarial Science by Author "Zhong, Yujie"
Now showing items 1-6 of 6
-
Augmented composite likelihood for copula modeling in family studies under biased sampling
Zhong, Yujie; Cook, Richard J. (Oxford University Press, 2016-01-27)The heritability of chronic diseases can be effectively studied by examining the nature and extent of within-family associations in disease onset times. Families are typically accrued through a biased sampling scheme in ... -
The effect of omitted covariates in marginal and partially conditional recurrent event analyses
Zhong, Yujie; Cook, Richard J. (Springer, 2019-04-01)There have been many advances in statistical methodology for the analysis of recurrent event data in recent years. Multiplicative semiparametric rate-based models are widely used in clinical trials, as are more general ... -
Life History Analysis with Response-Dependent Observation
Zhong, Yujie (University of Waterloo, 2015-05-14)This thesis deals with statistical issues in the analysis of dependent failure time data under complex observation schemes. These observation schemes may yield right-censored, interval-censored and current status data and ... -
Sample size and robust marginal methods for cluster-randomized trials with censored event times
Cook, Richard J.; Zhong, Yujie (Wiley, 2015-03-15)In cluster-randomized trials, intervention effects are often formulated by specifying marginal models, fitting them under a working independence assumption, and using robust variance estimates to address the association ... -
Selection models for efficient two-phase design of family studies
Zhong, Yujie; Cook, Richard (John Wiley & Sons, Ltd., 2021-01-30)Family studies routinely employ biased sampling schemes in which individuals are randomly chosen from a disease registry and genetic and phenotypic data are obtained from their consenting relatives. We view this as a ... -
Semiparametric recurrent event vs time-to-first-event analyses in randomized trials: Estimands and model misspecification
Zhong, Yujie; Cook, Richard (John Wiley & Sons Ltd., 2021-04-20)Insights regarding the merits of recurrent event and time-to-first-event analyses are needed to provide guidance on strategies for analyzing intervention effects in randomized trials involving recurrent event responses. ...