Chapter 1: Since the early 2000s, evidence has accumulated for a significant differential effect of first-line antiretroviral therapy (ART) regimens on human immunodeficiency virus (HIV) treatment outcomes, such as CD4 ...

In this thesis, I investigate policies and programs to improve reproductive health. My thesis makes a substantive contribution to reproductive health policy and a methodological contribution to quasi-experimental research. ...

One major aim of statistics is to systematically study outcomes of interest in a population by observing the properties of a sample of that population. Some outcomes, such as the total number of people infected in an ...

Health care spending growth challenges the budgets of governments, businesses, and families. In 2015, one in every six dollars spent in the U.S. economy was related to health care – twice the share in 1980. The rapid growth ...

Single interrupted time series (ITS) is a quasi-experimental evaluation design used frequently in the health policy literature. This manuscript investigates the validity of single ITS through two within-study comparisons ...

This dissertation consists of two policy papers and one methods paper, all grounded in applied, empirical health-services research. The first two papers concern the influence of medical underwriting in the market for ...

We develop statistical strategies to explore how time-varying exposures to heavy metal mixtures affects cognition and cognitive trajectories in children. In chapter 1, we develop a Bayesian model, called Lagged Kernel ...

Stratified medicine has tremendous potential to deliver more effective therapeutic intervention to improve public health. For practical implementation, reliable prediction models and clinically meaningful categorization ...