Propensity score methods are used to reduce the effects of observed confounding when
using observational data to estimate the effects of treatments or exposures. A popular …

Observational studies are increasingly being used to estimate the effect of treatments,
interventions and exposures on outcomes that can occur over time. Historically, the hazard …

Due to increasing public health concerns that food animals could be reservoirs for antibiotic
resistant organisms, calls for reduced current antibiotic use on farms are growing …

Prior research indicates that 10–15 cases or controls, whichever fewer, are required per
parameter to reliably estimate regression coefficients in multivariable logistic regression …

Targeted prophylaxis has proven to be an efficient strategy in liver transplantation recipients
(LTRs). The aim of this study was to compare the effectiveness and safety of caspofungin …

Background Observational post-marketing assessment studies often involve evaluating the
effect of a rare treatment on a time-to-event outcome, through the estimation of a marginal …

Marriage is a social tie associated with health advantages for adults and their children, as
lower rates of preterm birth and low birth weight are observed among married women. In this …

Objectives To determine the association between the long-term use of analgesics and
progression of osteoarthritis (OA) as evidenced by up to 3-years follow-up worsening of …

Over the past two decades, findings on medication use during pregnancy have been
accumulating from observational data. Generally, field studies with prospective recruitment …

In different studies for treatment effect on dichotomous outcome of a certain population, one
uses different regression models, leading to different measures of the treatment effect. In …