- Statistical Methods in Clinical Trials
- Health Systems, Economic Evaluations, Quality of Life
- Advanced Causal Inference Techniques
- Statistical Methods and Bayesian Inference
- Meta-analysis and systematic reviews
- Mental Health Research Topics
- Attention Deficit Hyperactivity Disorder
- Treatment of Major Depression
- Statistical Methods and Inference
- Suicide and Self-Harm Studies
- Statistics Education and Methodologies
- Child and Adolescent Psychosocial and Emotional Development
- Neurobiology of Language and Bilingualism
- Schizophrenia research and treatment
- Bayesian Methods and Mixture Models
- Renal Transplantation Outcomes and Treatments
- Health Policy Implementation Science
- Sleep and Wakefulness Research
- Language Development and Disorders
- Gun Ownership and Violence Research
- Psychotherapy Techniques and Applications
- Healthcare Policy and Management
- Optimism, Hope, and Well-being
- Resilience and Mental Health
- Sleep and related disorders
Carnegie Mellon University
2014-2024
Google (United States)
1989-2024
John Wiley & Sons (United States)
2020-2021
Boston University
2019
National Institutes of Health
2015
National Center for Advancing Translational Sciences
2015
Commonwealth Scientific and Industrial Research Organisation
2011
University of Pittsburgh
1987-2007
University of Pittsburgh Medical Center
2006
Geriatric Research Education and Clinical Center
2005
Background. Despite the impact of medical regimen nonadherence on health outcomes after organ transplantation, there is mixed and conflicting evidence regarding prevalence predictors posttransplant nonadherence. Clinicians require precise information rates in order to evaluate patients' risks for this problem. Methods. A total 147 studies kidney, heart, liver, pancreas/kidney-pancreas, or lung/heart-lung recipients published between 1981 2005 were included a meta-analysis. Average calculated...
Meta-analysis consists of quantitative methods for combining evidence from different studies about a particular issue. A frequent criticism meta-analysis is that it may be based on biased sample all were done. In this paper, we use selection models, or weighted distributions, to deal with one source bias, namely, the failure report do not yield statistically significant results. We apply models two approaches have been suggested correcting bias. The fail-safe size approach calculates minimum...
This study compares age-specific rates of suicide between black and white youths using data from the Web-based Injury Statistics Query Reporting System (WISQARS) Centers for Disease Control Prevention.
Suicide is a leading cause of death among school-aged children younger than 12 years but little known about the epidemiology suicide in this age group.To describe trends US by sociodemographic group and method death.Period trend analysis national mortality data on aged 5 to 11 United States from January 1, 1993, December 31, 2012. Data were analyzed per 5-year periods, between 1993 1997 2008 2012.Number deaths crude rates. Period rates estimated using negative binomial regression incidence...
The Mustard operation corrects the effects of congenital transposition great arteries by creating an intraarterial baffle to direct pulmonary venous blood tricuspid orifice and systemic mitral orifice. To identify long-term this procedure, we followed 372 patients with complete who survived for at least three months. mean follow-up period was 4.5 years (range, 0.4 15.9); age 2.0 years. Mean resting heart rates were consistently lower than those age-matched normal children. Seventy-six per...
Numerous studies have asserted the prevalence of marital conflict among families children with attention-deficit/hyperactivity disorder (ADHD), but evidence is surprisingly less convincing regarding whether parents youths ADHD are more at risk for divorce than without ADHD. Using survival analyses, authors compared rate dissolution between adolescents and young adults Results indicated that diagnosed in childhood (n = 282) were likely to had a shorter latency 206). Among subset those ADHD,...
We examine the use of fixed-effects and random-effects moment-based meta-analytic methods for analysis binary adverse-event data. Special attention is paid to case rare adverse events that are commonly encountered in routine practice. study estimation model parameters between-study heterogeneity. In addition, we traditional approaches hypothesis testing average treatment effect detection heterogeneity across studies. derive three new methods, a simple (unweighted) estimator, parametric...
Whether through the use of online-only or hybrid/blended formats, colleges and universities across country are increasingly utilizing online platforms as a medium for delivery instruction. At same time, we know little about how student learning outcomes related to students' engagement with instructional formats. In particular, few studies have evaluated in community colleges, fewer yet employed an experimental quasi-experimental design do so. this research, propensity score matching compare...
DEPRESSION in the aging and aged is a major public health problem. It causes suffering to many who go undiagnosed, it burdens families institutions providing care for elderly by disabling those might otherwise be able-bodied. What makes depression so insidious that neither victim nor provider may recognize its symptoms context of multiple physical problems people. Depressed mood, typical signature depression, less prominent than other depressive such as loss appetite, sleeplessness, anergia,...
Plasma catecholamine and renin activity levels were measured across a range of dietary sodium intakes (10--300 mEq/day) in 20 normal male volunteers. Supine plasma norepinephrine presented triphasic pattern relation to urine sodium, whereas epinephrine not significantly altered by intake, showed the well-known hyperbolic relationship excretion. Highest supine values occurred at low salt intakes, lowest when excretion was between 100 180 mEq/day, intermediate greater than mEq/day. These...
Abstract This article presents five principles of learning, derived from cognitive theory and supported by empirical results in psychology. To bridge the gap between practice, each these is transformed into a practical guideline exemplified real teaching context. It argued that this approach putting practice can offer several benefits to statistics education: A means for explaining understanding why reform efforts work; set guidelines help instructors make well-informed design decisions when...
Pharmacological and expectancy effects of 0.3 mg/kg methylphenidate on the behavior attributions boys with attention-deficit/hyperactivity disorder were evaluated. In a within-subject, balanced-placebo design, 136 received 4 medication-expectancy conditions. Attributions for success failure daily report card gathered. Assessments took place within setting summer treatment program repeated in boys' regular classrooms. Expectancy did not affect behavior; only active medication improved their...