386,595 papers found

Artificial grammar learning (AGL) has become an important tool used to understand aspects of human language learning and whether the abilities underlying learning may be unique to humans or found in other species. Successful learning is typically assumed when human or animal participants are able to distinguish stimuli…

The relationship between exercise and anxiety has been extensively examined over the last 15 years. Three separate meta-analysis were conducted to quantitatively review the exercise-anxiety literature for state anxiety, trait anxiety and psychophysiological correlates of anxiety. Such a procedure allows tendencies of t…

BACKGROUND: The shortage of donor hearts significantly limits heart transplantation. Innovative machine perfusion strategies have emerged to address the shortcomings of traditional static cold storage after brain death (SCS-DBD), potentially enhancing outcomes and broadening donor eligibility. We performed a systematic…

Meta-analysis (eight general population longitudinal studies) describes the relationships (regressions) between quantity per occasion and depressive symptomatology over time. Quantity and depression are the strongest and most consistent predictors of final levels of themselves in all data sets. Age significantly and co…

It is aimed to evaluate the effectiveness and provide evidence-based medical support for acupuncture as a prophylactic treatment for migraines. Randomized controlled trials (RCTs) from inception to April 2022 are included in 14 databases. Pairwise meta-analysis is conducted using STATA software V14.0, while Windows Bay…

Prominent nonquantitative reviews of research evaluating school-based interventions designed to deter adolescents from the use of tobacco, alcohol and other drugs found the methodology to be flawed and thus little evidence existed that the interventions had the desired impact. Recent meta-analytic reviews indicate that…

OBJECTIVE: There is an ongoing debate how to interpret findings of meta-analyses when substantial clinical heterogeneity is present among included trials. The aim of the present study was to demonstrate various ways of dealing with clinical heterogeneity along with underlying assumptions and interpretation. A recent me…

BACKGROUND: This study used network meta-analysis to compare the effectiveness of different exercise prescription variables (e.g., duration, frequency, intensity, and type) in improving inhibitory control in children with ADHD. METHODS: A systematic search was conducted on databases like EBSCO, PubMed, Web of Science,…

This meta-analysis demonstrated that interventions have a significant (p less than .05) immediate posttreatment influence on elders' subjective well-being but that their beneficial effect dissipates within 1 month. For 28 effect sizes derived from immediate posttreatment occasions (delay = 0 days), the median value was…

OBJECTIVES: Evaluating the variation in the strength of the effect across studies is a key feature of meta-analyses. This variability is reflected by measures like τ(2) or I(2), but their clinical interpretation is not straightforward. A prediction interval is less complicated: it presents the expected range of t…

BACKGROUND: Tic disorder (TD) is a neuropsychiatric disorder that often begins in childhood or adolescence. Acupuncture and moxibustion are alternative therapies that have been demonstrated to be effective in the treatment of TD. Over the past few decades, several systematic reviews (SRs) and meta-analyses have reporte…

We reviewed the literature on sleep in psychiatric disorders and evaluated the data by meta-analysis, a statistical method designed to combine data from different studies. A total of 177 studies with data from 7151 patients and controls were reviewed. Most psychiatric groups showed significantly reduced sleep efficienc…

A large number of common disorders, including cancer, have complex genetic traits, with multiple genetic and environmental components contributing to susceptibility. A literature search revealed that even among several meta-analyses, there were ambiguous results and conclusions. In the current study, we conducted a tho…

Summarizing the results of research related to identifying potential predictors of hospital readmissions has been difficult because of conflicting results across studies. Using the techniques of meta-analysis, the results from 44 studies were examined in the present study. Overall, the mean readmission rate was 27%, wi…

Studies consistently show that total sleep deprivation (TSD) and measures of performance are negatively correlated. However, an accurate quantitative summary of the relationship between these variables has not yet been reported. After collection of the data from 27 relevant studies, meta-analytic techniques were used t…

This study quantitatively integrated the results of independent research papers containing correlates of objectively measured diabetes patients' compliance with prescribed medications. A total of 183 correlations were extracted from 26 studies. Separate meta-analytic syntheses were conducted to calculate average correl…