381,585 papers found

In this article we demonstrate that the difference in sleep between depressives and healthy controls varies systematically as a function of the mean age of the sample studied. The data were taken from 27 studies that had compared the sleep of drug-free depressed patients and age-matched healthy controls. In all, the st…

A large number of reports on human protease inhibitor (PI) type frequencies in various populations have now appeared. A combination of the results of published studies shows that the observed frequencies of the M subtype homozygotes and heterozygotes differ significantly from those predicted by the Hardy-Weinberg equil…

BackgroundAgitation in Alzheimer's disease significantly impacts patient outcomes and caregiver burden. Brexpiprazole has emerged as a promising treatment option, but optimal dosing remains unclear.ObjectiveTo evaluate the comparative efficacy and safety of different brexpiprazole doses in treating agitation associated…

AIM: Noninvasive neuromodulation techniques, including transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and transcranial focused ultrasound stimulation (tFUS), are promising interventions for acute treatment of depressive episodes. However, the comparative efficacy and acceptabil…

BACKGROUND: Melasma is a prevalent, persistent hyperpigmentation disorder that negatively affects the psychological health of patients. However, the treatment outcome remains unsatisfactory due to the complexity of pathogenesis, recurrence characteristics, and relatively high morbidity. OBJECTIVES: To compare the perf…

BACKGROUND: Cancer risk has been associated with certain gene variations in microRNA (miRNA), but conflicting evidence warrants re-assessing of significant results in meta-analyses. We summarized published meta-analyses that assess the associations between miRNA polymorphism and cancers to show the validity of the find…

Meta-analysis of all randomised trials published so far, was performed to compare the effect of additional gonadotropin releasing hormone (GnRH)-agonist treatment to exogenous gonadotropins for ovulation induction in clomiphene-resistant polycystic ovary syndrome (PCOS) patients. Five clinical studies were included, of…

The research on memory for schema-relevant information has produced sharply contradictory results. Some studies demonstrate memory selectivity for schema-consistent information, others demonstrate memory selectivity for schema-inconsistent information. Meta-analytic procedures are applied to a sample of 60 independent…

Many current discussions of hereditary factors in psychopathology focus on twin studies as the primary source of evidence supporting the importance of genetic determinants. In summarizing the results of these studies, authors often derive estimates of concordance rates by collapsing across studies and presenting mean o…

This paper demonstrates that Wald's meta-analysis is an unadjusted combination of unadjusted estimates. There are many differences among the design and implementation of the original studies combined here. One consequence of these differences is that studies of spousal smoking and lung cancer mortality conducted in the…

This article presents a Meta-Analysis of previous HIV-related neuropsychological research and new data from a study with methodological improvements over early investigations. In this study, the authors compared neuropsychological testing for three groups of adult male homosexuals: (a) HIV seronegative controls (n = 30…

Testing the efficacy of lamotrigine (LTG) in epileptic patients has been approached in several ways. The first pilot study examined the effect of a single dose of LTG in patients with frequent interictal spikes, and a reduction in spike frequency was observed. Subsequently, single doses reduced photosensitivity in appr…

Epidemiological and experimental papers on respiratory effects of air pollution published between 1980 and 1988 were reviewed, using a meta-analytical approach. Forty epidemiological papers dealing with sulfur dioxide (SO2) and total suspended particles (TSP) were used to scrutinize the interaction between the two poll…

This review focuses on the results of well-designed studies that have been completed on populations of nuclear workers in the U.S. and the U.K. An attempt is made to introduce a quantitative component to this review, an approach previously described as metaanalysis. Such a method requires designation of eligibility cri…

Insomnia affects up to 50% of hospitalized patients and is strongly associated with longer hospital stays and higher mortality rates, especially among vulnerable individuals. Despite its prevalence, it's often overlooked in clinical practice and research. Our systematic review analyzed and compared pharmacological inte…

INTRODUCTION: Systematic reviews are a cornerstone of evidence-based public health. The method of appraising the quality of different intervention and observational study designs in such reviews remains an important challenge. This article examines the applicability of selected quality appraisal tools (QATs) and the im…

BACKGROUND: The main objective of this meta-analysis was to determine the clinical benefit of concurrent chemoradiotherapy (CCRT) compared with radiation alone (RT) in the treatment of nasopharyngeal carcinoma (NPC) patients in endemic geographic areas. METHODS: Using a prospective meta-analysis protocol, two independ…

A systematic review and meta-analysis was conducted to identify study-level variables that could explain the variation in apparent Salmonella spp. prevalence estimates. Electronic and non-electronic literature searches from 1990 until 2005 were carried out to identify all studies related to the prevalence of subclinica…