Digital media and child development
Research explores digital media's effects on children, revealing enhanced phoneme learning and potential links to aggressive behavior. Early media exposure also affects attention in young minds.
Metaanalysis
Articles tagged with Metaanalysis
Life Sciences
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
447,757
articles
2542
topics
Health and Medicine
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
431,843
articles
751
topics
Social Sciences
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
260,756
articles
745
topics
Physical Sciences
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
257,913
articles
1552
topics
Applied Sciences and Engineering
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
225,386
articles
998
topics
Scientific Community
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
193,043
articles
157
topics
Space Sciences
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
29,662
articles
175
topics
Research Methods
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
21,889
articles
139
topics
Mathematics
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
3,023
articles
113
topics
Marriage protects against malnutrition in old age
Malnutrition affects more elderly people who are unmarried, separated or divorced. Marriage or being widowed tends to prevent malnutrition. Factors such as difficulties walking, coping with stairs, and hospital stays also contribute to the risk.
Finding the sweet spot of a good night's sleep: Not too long and not too short
A recent study published by the European Society of Cardiology found that sleeping six to eight hours a night is most beneficial for heart health. The research, which analyzed data from over one million adults, suggests that both short and long sleepers have an increased risk of developing coronary artery disease or stroke.
Scientists uncover new facts concerning working memory in children
Researchers from the Higher School of Economics conducted a meta-analysis of neuroimaging studies on working memory in children, revealing concordance in frontoparietal regions and unexpected findings in the prefrontal cortex. The study sheds light on the complex role of the insula and its potential impact on learning.
Systematic review examines role of walnut consumption on cardiovascular risk factors
A systematic review analyzing the effects of walnut consumption on cardiovascular risk factors reveals significantly greater reductions in total cholesterol, LDL cholesterol, triglycerides, and apolipoprotein B compared to control diets. Walnut-enriched diets resulted in no adverse effects on body weight or blood pressure.
One year of school comes with an IQ bump, meta-analysis shows
A meta-analysis of 42 studies found that an additional year of education correlates with an average increase of 3.394 IQ points, with effects lasting even into adulthood. The study's findings suggest that education has a long-lasting impact on intelligence, regardless of age.
Study finds popular 'growth mindset' educational interventions aren't very effective
A study by Michigan State University and Case Western Reserve University found that growth mindset interventions have little to no effect on academic achievement for typical students. The researchers suggest that the benefits of these interventions are overstated and that something other than mindset is causing the observed effects.
New Zealand's secret recipe for active school travel: The neighborhood built environment
A systematic meta-analysis of New Zealand children and youth found associations between connected streets, lower residential density, and shorter distances to school. The study suggests that planning decisions for school locations and infrastructure improvements can contribute to increased active travel rates.
High levels of workplace exercise linked to early death
A recent study published in the British Journal of Sports Medicine found that men with highly physical jobs have an 18% higher risk of early death compared to those with inactive work. The analysis controlled for leisure time physical activity and found no such association among women.
Is sickle cell trait genetic risk factor for increased stroke risk?
A meta-analysis of four studies involving 19,464 African American participants found no association between sickle cell trait and ischemic stroke. The study aimed to understand sources of racial disparities in stroke risk among African Americans.
Self-regulation in children, adolescents
A systematic review of 49 randomized trials involving 23,098 participants found that various self-regulation interventions were effective in promoting emotional control, social skills, and learning. The review suggests that these programs can help maintain health and well-being throughout life.
Health-related quality of life for patients with vascular malformations
A meta-analysis of 692 patients with vascular malformations found that they had lower scores on a health survey, indicating increased bodily pain and mental health distress compared to the general U.S. population. This study highlights the importance of addressing the quality of life for patients with these conditions.
New analysis recommends against using digital rectal exam in primary care
A new systematic review and meta-analysis of previous research found limited data to support the effectiveness of digital rectal exams for prostate cancer screening. The study concluded that existing studies were at risk of bias due to poor quality evidence.
Fixing damaged ecosystems: How much does restoration help?
A new study found that while ecosystems can bounce back from large-scale disturbances, complete recovery is elusive. Passive recovery, which involves halting damaging practices, may be a more effective strategy than active restoration, especially for systems that don't require significant added help.
Estimates of sexting frequency by young people under 18
A meta-analysis of 39 studies found that 1 in 7 young people under 18 send sexts, while 1 in 4 receive them. The study aimed to inform policy and future research on sexting among this age group.
New research highlights ineffectiveness of 'wonder drug' for alcohol use disorders
A new study published in the Addiction journal found that baclofen is no more effective than placebo in treating alcohol use disorders. The meta-analysis revealed higher abstinent rates, but other outcomes failed to show an effect, including reduced cravings and negative mood states.
Social media to blame for poor grades?
Research suggests that social media use is correlated with slightly better school grades, particularly when used to discuss school-related topics. However, excessive social media use while studying can lead to poorer performance.
New analysis proves protein supplements provide significant benefits for weight lifters
A new analysis of dozens of studies confirms protein supplements boost muscle mass and strength in weightlifters. However, their effectiveness decreases with age, highlighting the need for greater supplementation as people get older.
New meta-analysis: Recreational football is broad-spectrum medicine
A new meta-analysis finds that 3-6 months of football training twice a week improves cardiovascular fitness by 3.51 mL/min/kg, lowers fat mass and resting heart rate, and reduces blood pressure in patients with hypertension and type 2 diabetes. Football is considered broad-spectrum medicine for lifestyle disease prevention.
For stroke patients, rating scales predict discharge destination
A systematic review of nine studies found that standardized outcome measures like the Functional Independence Measure (FIM) and National Institutes of Health Stroke Scale (NIHSS) can predict stroke patients' discharge destinations. Patients with higher scores on these scales are more likely to be discharged home, while those with lower...
Action games expand the brain's cognitive abilities
A meta-analysis of 15 years of research on action video games found that gamers showed significant improvements in cognitive abilities compared to non-gamers. The study suggests that playing action video games can train the brain and improve attention, spatial cognition, and reaction time.
Parental diet affects offspring immunity: Meta-analysis
A meta-analysis of hundreds of studies found a close relationship between parents' diet and offspring immunity across various animal species. The study suggests that poor nutrition can negatively impact disease resistance and that the effects of a parental diet can be inherited and maintained in offspring even on a normal diet.
Vaginal progesterone reduces preterm birth and neonatal complications in women with a mid-trimester short cervix
A major international study found that vaginal progesterone administration to women with a mid-trimester sonographic short cervix reduces the rate of preterm birth at various gestational ages. The study also shows a reduction in neonatal complications, including very low birth weight and associated mortality.
No cardiovascular disease reduction with intensive blood pressure lowering treatment
A systematic review and meta-analysis published in JAMA Internal Medicine found that intensive blood pressure lowering treatment does not reduce death or cardiovascular disease in healthy individuals with a systolic blood pressure below 140mmHg. Treatment's beneficial effect is limited to trials in people with coronary heart disease.
Teams work better with a little help from your friends
Researchers analyzed 26 studies to find teams of friends outperformed groups of acquaintances or strangers on tasks requiring output maximization. Friendship groups coordinated tasks more effectively and were motivated by social interactions.
Endometriosis increases risk of complications during pregnancy and delivery
A new meta-analysis reveals that pregnant women with endometriosis are at higher risk for complications such as preterm birth, miscarriage, and small-for-gestational-age infants. The study also shows no association between endometriosis and gestational hypertension or preeclampsia.
Debunking study suggests ways to counter misinformation and correct 'fake news'
A meta-analysis of debunking studies finds that a detailed counter-message is more effective than labeling misinformation as wrong. The study suggests involving audiences in scrutiny and counterarguing, introducing new information, and reducing arguments supporting misinformation.
Research finds entrenched hiring bias against African-Americans
A recent Northwestern University meta-analysis found striking stability in discrimination against African-Americans, despite a decline in Latino discrimination. Researchers analyzed data from field experiments of hiring between 1990 and 2015, finding that racial gaps in the labor force persist regardless of educational attainment.
Omega-3 intake reduces cardiac death risk according to comprehensive new study
A meta-analysis of 14 randomized controlled trials found that consuming EPA and DHA omega-3s reduced the risk of cardiac death by an average of 8%. Higher risk reduction was seen in individuals with high cholesterol or triglycerides, with a significant 17% reduction in these groups.
New meta-analysis shows peer influence doubles smoking risk for adolescents
A new meta-analysis finds that having friends who smoke doubles the risk of adolescents starting and continuing to smoke. The study also reveals that peer influence is stronger in collectivist cultures, where adolescents are 4.3 times more likely to pick up smoking if their peers smoke.
Researchers call for new consistent, robust standards for the development of meta-analyses
Researchers call for consistent, robust standards for developing meta-analyses due to the dramatic increase in published studies. The American Heart Association recommends improving quality through technical guidelines and emphasizing the need for statistical expertise and clear justifications.
Lifestyle-modification programs for weight management in Arab states lack in effectiveness
A systematic review found that lifestyle-modification programs have no significant impact on body weight in Arab countries, highlighting the need for adapted treatment programs. The studies cited methodological flaws, including linguistic and socioeconomic context neglect, and sociocultural obstacles to female participation.
Updated meta-analysis to compare the efficacy and safety of S-DAPT versus L-DAPT strategies
A meta-analysis of 19,760 patients found S-DAPT associated with higher rates of myocardial infarction but lower TIMI major bleeding compared to L-DAPT. The optimal DAPT duration remains unclear due to varying patient risks and agent choices.
Research suggests sexual appeals in ads don't sell brands, products
A new study found that sexual appeals in ads do not lead to increased brand memory or purchasing intentions. Instead, they often result in a negative attitude toward the brands featured.
Field of 'sexting' research finds little to worry about
Researchers analyzed 15 studies to investigate the relationship between sexting and sexual behavior. They found a weak statistical correlation, but couldn't determine if sexting influenced behavior. A common definition of sexting is lacking, highlighting the need for better study design.
Stem cell therapy holds promise for treating most severe cases of angina
A meta-analysis of three trials found that CD34+ stem cells improved exercise time by 80.5 seconds and reduced mortality by 24 months in patients with refractory angina. This therapy has been shown to be safe and effective for treating patients with limited options.
Narcissism and social networking
A recent meta-analysis of 57 studies involving over 25,000 participants found a weak to moderate link between social media activity and narcissistic tendencies. Grandiose narcissists are more likely to frequent social networking sites, whereas vulnerable narcissism is associated with insecurity and social withdrawal.
Analysis of antibiotics, appendectomy for uncomplicated appendicitis in kids
A meta-analysis of 404 pediatric patients found that antibiotic treatment was successful in 90.5% without increasing the risk of complications, but failure rates were higher in those with appendicolith; surgery is preferred for cases with this condition.
People who trust their doctor tend to feel better
A meta-analysis by psychologists at the University of Basel found that patients' confidence in medical personnel has a positive effect on satisfaction, health-related behavior, and quality of life. However, the study did not find a clear-cut result when using objective clinical parameters or doctors' assessments.
Horseback riding interventions have therapeutic benefits for people with disabilities
A systematic review and meta-analysis of horseback riding interventions found significant improvements in balance, motor function, and quality of life for children and adults with neuromotor disabilities. The studies also showed benefits for patients with cerebral palsy, multiple sclerosis, and stroke.
Study confirms vitamin D protection against cold and flu
A global study confirms that vitamin D supplementation reduces the risk of acute respiratory infections by cutting it in half for individuals with severe vitamin D deficiency. Regular supplementation also offers benefits, whereas occasional high doses show no significant impact.
Surrounding real estate shows increase in value if near transit station
A national meta-analysis by University of Texas at Arlington researcher Shima Hamidi found that single-family property values near transit stations rise only 2.3 percent, while multi-family and commercial properties can see up to 18 percent increase in value.
Mounting challenge to brain sex differences
Researchers at Rosalind Franklin University of Medicine and Science found no significant difference in brain amygdala volume between healthy men and women in a meta-analysis of dozens of studies. The study's findings suggest that there is more similarity than difference between the sexes, with minimal overlap in key brain structures.
High attrition rate among residents in general surgery programs
A review of 22 studies on general surgery residents found a pooled estimate of 18% attrition prevalence, with significant variation between studies. The most common causes of attrition were uncontrollable lifestyle and choosing another specialty.
Psychologists analyze links between provider burnout, quality of care, patient safety
Psychologists analyzed links between provider burnout, quality of care, and patient safety across various medical disciplines. The meta-analysis found a consistent relationship between higher levels of burnout and lower levels of both quality and safety.
Study says CT use OK for some colon cancers, yet challenging for lymph node involvement
A recent study published in the American Journal of Roentgenology found that CT scans have good sensitivity for detecting colon cancers with tumors beyond the bowel wall, but struggle with identifying nodal involvement. Thin-slice CT may be an effective tool in this area.
Alcohol may increase risk of some types of stroke but not others
Researchers found a divergent association between alcohol consumption and different types of stroke, with heavy drinking increasing the risk of hemorrhagic stroke. Light to moderate alcohol consumption was associated with a lower risk of ischemic stroke but no effect on hemorrhagic stroke.
Palliative care improves quality of life, lessens symptoms
A new study found that palliative care significantly improves patients' quality of life and symptom burden, while also increasing patient and caregiver satisfaction. Researchers analyzed 43 trials involving 12,731 adults with serious illness and their family caregivers.
Brain training can help in fight against dementia: Meta-analysis
Researchers found that brain training improves memory and mood in people with mild cognitive impairment, but not in those with dementia. A meta-analysis of 17 studies involving nearly 700 participants showed significant benefits for brain training in preventing cognitive decline.
November/December 2016 Annals of Family Medicine tip sheet
A recent study by European researchers found that patients with acute bacterial lower respiratory tract infections (LRTIs) had only slightly worse symptoms and returned more often to their physician than those without bacterial LRTIs. The authors conclude that these infections are generally mild and self-limiting, allowing physicians t...
Smells like teen spirit
A recent meta-analysis found that all three sensory agents affect shoppers, but in different ways. Music is positively related to pleasure and satisfaction, while scent affects arousal, pleasure, and behavioral intentions. Retailers can tailor their environments using these stimuli to increase appeal.
One egg per day associated with 12 percent reduced risk of stroke
A systematic review of studies suggests a 12% lower risk of stroke associated with moderate egg consumption, likely due to the high-quality protein and antioxidants present. Eggs are an affordable source of essential nutrients, supporting heart health and overall well-being.
Cocoa compound linked to some cardiovascular biomarker improvements
A systematic review and meta-analysis of 19 randomized controlled trials found potential beneficial effects of flavanol-rich cocoa on cardiometabolic health. Flavanol intake may reduce dyslipidemia, insulin resistance, and systemic inflammation, which are major subclinical risk factors for cardiometabolic diseases.
Women appear to be more accepting of their bodies/weight
Research finds women's body dissatisfaction decreasing over time, while men's remains relatively constant. The study suggests a positive trend towards increased body diversity and acceptance among women, potentially influenced by the rise of body positivity movement.
Is there difference in surgical site infection using sterile vs. nonsterile gloves?
A systematic review and meta-analysis of 13 studies found no significant difference in surgical site infection (SSI) rates between procedures using sterile and nonsterile gloves. The analysis included 11,071 patients from 228 SSI cases, with rates of 2.1% for non-sterile glove procedures and 2% for sterile glove procedures.
Study links omega-3s to reduced mortality
A recent meta-analysis in Scientific Reports supports the link between omega-3s and reduced mortality. The analysis showed a 9% reduced risk of all-cause death associated with high versus low omega-3 intake.
UTA marketing study shows lenient return policy may increase sales
A meta-analysis of retail return policies found that leniency in exchange and scope can increase purchases, while time and money leniency reduce returns. Relaxing other aspects of return policies can also curb returns, according to the study.
Eating more whole grains linked with lower mortality rates
A meta-analysis by researchers from Harvard T.H. Chan School of Public Health found that people who ate the most whole grains had a lower risk of dying during the study period compared to those who ate little or no whole grains.
Research finds offender risk assessment tools in US Are promising, but questions remain
A new meta-analysis of US recidivism risk assessment instruments found them to be accurate but with unclear impact on reducing bias against offenders based on race or other factors. The study evaluated 19 commonly used RAIs and assessed their accuracy in predicting recidivism, ease of use, and inter-rater reliability.
New meta-analysis shows ketamine effective against persistent post-surgical pain and could provide major cost-savings globally
A new meta-analysis shows that ketamine is half as likely to experience persistent post-surgical pain compared to placebo, offering a cheap and safe treatment option. This could lead to significant cost savings globally if widely adopted.