College of Public Health students graduating

Philip Westgate PhD

Department: Biostatistics

Title: Associate Professor

Email Address:

Phone: (859) 218-2082

Location: MDS 205B

CV: CV Westgate.pdf


Professional Summary

Dr. Westgate is an Associate Professor of Biostatistics.  He received his Ph.D. from the Department of Biostatistics at the University of Michigan in 2011 and joined the Department of Biostatistics at the University of Kentucky that same year. His research interests include, but are not limited to, cluster randomized trials, longitudinal studies, and marginal modeling.



Ph.D., Biostatistics, University of Michigan, 2011
M.S., Biostatistics, University of Michigan, 2008
B.S., Statistics, Actuarial Science, Central Michigan University, 2006


Selected Publications

Chen I-C, Westgate PM. Improved Methods for the Marginal Analysis of Longitudinal Data in the Presence of Time-Dependent Covariates. Statistics in Medicine 2017; 36: 2533-2546                                                                                                                            .

Ford WP, Westgate PM. Improved Standard Error Estimator for Maintaining the Validity of Inference in Cluster Randomized Trials with a Small Number of Clusters. Biometrical Journal 2017; 59: 478-495.

Westgate PM, Burchett WW. On the Analysis of Very Small Samples of Gaussian Repeated Measurements: An Alternative Approach. Statistics in Medicine 2017; 36: 958-970.

Westgate PM, Burchett WW. A Comparison of Correlation Structure Selection Penalties for Generalized Estimating Equations. The American Statistician 2016. DOI: 10.1080/00031305.2016.1200490

Westgate PM, Burchett WW. Improving Power in Small-Sample Longitudinal Studies when Using Generalized Estimating Equations. Statistics in Medicine 2016; 35: 3733-3744.

Westgate PM. Intra-Cluster Correlation Selection for Cluster Randomized Trials. Statistics in Medicine 2016; 35: 3272-3284.

Westgate PM. A Covariance Correction that Accounts for Correlation Estimation to Improve Finite-Sample Inference with Generalized Estimating Equations: A Study on its Applicability with Structured Correlation Matrices. Journal of Statistical Computation and Simulation 2016; 86: 1891-1900.

Westgate PM. Criterion for the Simultaneous Selection of a Working Correlation Structure and either Generalized Estimating Equations or the Quadratic Inference Function Approach. Biometrical Journal 2014; 56: 461-476.

Westgate PM. Improving the Correlation Structure Selection Approach for Generalized Estimating Equations and Balanced Longitudinal Data.  Statistics in Medicine 2014; 33 : 2222-2237.

Westgate PM. On Small-Sample Inference in Group Randomized Trials with Binary Outcomes and Cluster-Level Covariates. Biometrical Journal 2013; 55: 789-806.

Westgate PM, Braun TM. An Improved Quadratic Inference Function for Parameter Estimation in the Analysis of Correlated Data. Statistics in Medicine 2013; 32 : 3260-3273.

Westgate PM. A Bias Correction for Covariance Estimators to Improve Inference with Generalized Estimating Equations that Use an Unstructured Correlation Matrix. Statistics in Medicine 2013; 32 : 2850-2858.

Martinez CH, Chen Y, Westgate PM, Liu LX, Murray S, Curtis JL, Make BJ, Kazerooni EA, Lynch DA, Marchetti N, Washko GR, Martinez FJ, Han MK. Relationship between quantitative CT metrics and health status and BODE in chronic obstructive pulmonary disease. Thorax 2012; 67 : 399-406.

Zach JA, Newell Jr JD, Schroeder J, Murphy JR, Curran-Everett D, Hoffman EA,Westgate PM, Han MK, Silverman EK, Crapo JD, Lynch DA. Quantitative Computed Tomography of the Lungs and Airways in Healthy Nonsmoking Adults. Investigative Radiology 2012; 47 : 596-602.

Westgate PM. A Bias-Corrected Covariance Estimate for Improved Inference with Quadratic Inference Functions. Statistics in Medicine 2012; 31 : 4003-4022.

Westgate PM, Braun TM. The Effect of Cluster Size Imbalance and Covariates on the Estimation Performance of Quadratic Inference Functions. Statistics in Medicine 2012; 31 : 2209-2222.

Westgate PM, Braun TM. Improving Small-Sample Inference in Group Randomized Trials with Binary Outcomes. Statistics in Medicine 2011; 30 : 201-210.