Articles tagged with Cohort Studies
A systematic review of 8215 studies found that low-dose computed tomography (LDCT) screening does not significantly influence overall quality of life or result in long-term anxiety or distress. However, positive results can lead to short-term increases in distress levels.
Despite popular beliefs, a recent Max Planck Institute study of 1,265 volunteers found no correlation between human sleep and lunar phases. The researchers discovered conflicting results may be due to publication bias, which can lead to omitted negative findings.
Two studies published in PLOS Medicine found a link between moles and increased breast cancer risk. Women with more moles were more likely to develop breast cancer, particularly postmenopausal women. The findings suggest that nevi may be affected by hormone levels, which could be used as a marker for breast cancer risk.
Researchers found that even modest delays in TAVR can significantly impact its effectiveness in severely ill patients. Modest increases in wait times reduced the treatment's benefits, while prolonged waits made it less effective than surgery for high-risk surgical candidates.
Researchers have developed a protocol for collecting saliva and stool samples for genomic and transcriptomic analyses, eliminating the need for specialized personnel and facilities. This method provides critical insight into the genetic makeup of the microbiome and its association with diseases such as celiac disease, oral cancer, and ...
A new study by researchers at Brigham and Women's Hospital found that taking calcium supplements did not increase the risk of cardiovascular disease in women. The study, published in Osteoporosis International, examined 74,245 women over 24 years and found no association between calcium supplement intake and heart attack or stroke.
A recent study published in PLOS Medicine found that only about half of strokes are attributable to known risk factors. The researchers analyzed data from over 6,800 individuals and estimated that hypertension and smoking were the most significant contributing factors.
A recent study discovered that both genetic factors and prenatal environments play a crucial role in shaping a baby's development. The research, led by A*STAR's Singapore Institute for Clinical Sciences, found that genetic differences alone account for only 25% of epigenetic variation, while environmental factors contribute up to 75%.
A new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that obstructive sleep apnea raises the risk of osteoporosis, especially among women and older individuals. The study used data from Taiwan's National Health Insurance program to track 1,377 people with obstructive sleep apnea and comp...
A prospective cohort study found that higher total folate intake was associated with a lower risk for exfoliation glaucoma (EG)/suspected exfoliation glaucoma (SEG). The results showed a trend of reduced EG/SEG risk with higher folate intake, particularly from supplements. This supports a possible causal role of homocysteine in EG/SEG.
Researchers found high-density lipoprotein (HDL) cholesterol and remnant lipoprotein (RLP) cholesterol levels are linked to CHD risk. HDL3 subfractions, not traditional HDL cholesterol, were more predictive in assessing and reducing CHD risk.
A Henry Ford Health study of 168 MLB pitchers before and after Tommy John surgery found diminishing returns in pitching categories such as ERA, WHIP, and IP. Researchers also identified risk factors associated with the injury and debunked the perception that UCL reconstruction improves performance.
Researchers have discovered a blood test that can predict cognitive decline and Alzheimer's disease within three years with greater than 90 percent accuracy. The test identifies 10 lipids in the blood, which appear to reveal the breakdown of neural cell membranes in participants who develop symptoms.
A new meta-analysis by IOF-IFCC found moderate but significant associations between bone turnover markers s-CTX and s-PINP, and risk of future fractures. The study confirms the clinical performance of these markers for fracture risk prediction in untreated individuals.
A new study by Mayo Clinic reveals that African-American individuals develop twice the antibody response to the rubella vaccine compared to Caucasians. This finding may enable the creation of vaccines tailored to specific ethnic groups or individuals, offering a more effective approach to immunization.
A population-based cohort study found that older adults with highly active thyroid glands are at a substantially increased risk of developing depression. The study analyzed data from 1,503 participants and found that those with higher TSH levels were more likely to experience depression symptoms over an eight-year period.
Research found that boys are at greater risk for delayed language development than girls, with family reading and writing difficulties increasing the risk. The study also highlights the importance of early identification and enabling language environments to support children with delayed language development.
Researchers found that imagining the smell of a food product without actual scent triggers a stronger desire to consume. The study, published in Journal of Consumer Research, suggests that visual cues can enhance consumer experience and increase sales.
A US study found that many adults consume more added sugar than recommended for a healthy diet, and this can increase the risk of death from cardiovascular disease. The study also suggests that regular consumption of sugary drinks is associated with an increased risk of CVD mortality.
A study of over 100,000 people found that long-term exposure to particulate matter in outdoor air is strongly linked to heart attacks and angina. The association persists at levels of exposure below the current European limits for PM2.5 and PM10.
A study by University of Miami researchers found that mindfulness training significantly reduces mind wandering in college students, improving attention and reducing stress. The seven-week program was highly effective in increasing focus and decreasing mind-wandering, with significant benefits for undergraduate students.
A recent study published in The Lancet found that long-term exposure to fine particles poses the greatest threat to health even within concentration ranges well below EU limits. Annual exposure to PM2•5 increases the risk of dying from natural causes by 7%.
A large study identifies genetic variants that contribute to the progression of chronic kidney disease in African Americans. APOL1 risk variants were found to be associated with higher rates of end-stage renal disease and progression of chronic kidney disease among black patients compared to white patients, regardless of diabetes status.
A study published in the Journal of Child Psychology and Psychiatry found a link between childhood ADHD and socioeconomic status in the UK. The research analyzed data from over 19,500 children born between 2000 and 2002, revealing that more children with ADHD came from families below the poverty line.
Cardiac antibody-mediated rejection is a major limitation to survival of patients who have undergone heart transplantation. A new working formulation has been developed to guide the diagnosis, grading, and reporting of AMR, which includes histopathologic features and immunopathologic criteria.
Genetic variants in the APOL1 gene increase the risk of kidney disease progression and end-stage renal disease in African Americans. Approximately 1 in 10 blacks possess high-risk variants, which speed up kidney disease progression and substantially increase the risk of developing kidney failure.
A new study from the University of Iowa found that affluent girls in two-parent homes are less likely to be sexually assaulted. The research revealed a decline in risk once family income reaches 400% of the poverty threshold, with girls aged 4-17 experiencing a significant reduction in assault risk.
Researchers found small differences between self-reported and measured weights following bariatric surgery, but self-reported weights were closer to actual weights than reported personal weights. Women underreported their weight by an average of 2.2 lbs., while men also showed similar underreporting.
A new study conducted by Portuguese urologists found enterocystoplasty to be a safe and effective surgical option for children with developmental abnormalities of the genitourinary system. The procedure showed low rates of severe complications, including successful bladder function improvement in 24 patients.
A new study suggests that prenatal exposure to paracetamol may increase the risk of adverse effects on child development, including poorer gross motor skills and behavioral problems. The study found that occasional use for short periods is likely not harmful to the fetus, but more research is needed to confirm these results.
Researchers will investigate links between substance abuse and HIV among Latino and African-American men who have sex with men. The MASCULINE study aims to determine how substance use affects HIV transmission and treatment outcomes.
A study published in Journal of Neurotrauma found that genetic differences can affect an individual's recovery from traumatic brain injury. Genetic variations in cytokine genes impact the magnitude and duration of neuroinflammation, affecting long-term repair processes.
A systematic review of 81 diagnostic studies found that expert panels were often not properly blinded or described, leading to potential biases and poor reproducibility. The study highlights the need for improved reporting of expert panel diagnoses to ensure accurate and reliable results in diagnostic research.
A large cohort of Swedish residents found no association between long-term fluoride exposure and the risk of hip fractures. The study included nearly half a million individuals exposed to varying levels of fluoride in their drinking water.
A new study finds that replacing coal-fired power plants with wind turbines is the most cost-effective way to cut carbon pollution and reduce health impacts. The switch can also lead to lower electricity generation costs, making clean energy a more economically viable option for powering America's electricity needs.
Despite Kaesong industrial zone reopening, North Korean scholar Dr. Sang-Yi O-Rauch expects no improvement in human rights due to the regime's control and terror system. The country's brutal oppression of its people is rooted in Kim Jong-un's power struggle, with an estimated 200,000 people detained in camps.
A study found that using electronic health records (EHRs) with computerized and automated growth monitoring led to a higher detection rate of growth disorders in children. The system referred abnormal data for review, resulting in 28 new diagnoses compared to 4 in the control period.
People with severe asthma are less likely to respond to corticosteroid treatment, even when taking high doses. Researchers found that 55% of adults with severe asthma showed greater airway obstruction despite regular oral corticosteroids. The study aims to develop personalized medicine for individual patients with asthma.
A study reveals that China's dominance in solar panel manufacturing is driven by larger-scale production and supply-chain benefits, not just cheaper labor. Future innovations in crystalline solar cell technology may help equalize prices by enhancing access to materials and expanding manufacturing scale across regions.
Researchers from the American Academy of Ophthalmology found a 40% lower long-term mortality risk among patients who had their vision corrected through cataract surgery. The study, which followed over 350 participants, suggests that correcting cataract-related visual impairment results in improved outcomes beyond just eye health.
A prospective cohort study of 81,697 racially diverse adults found that lung cancer survival between black and white patients was similar when demographic factors and smoking were controlled. The study aimed to address racial disparities in lung cancer survival rates.
A Mediterranean-type diet was not associated with a delay in the clinical onset of Huntington's disease, according to a study. High dairy consumption and caloric intake were found to increase the risk of phenoconversion. The study suggests that modifying specific components of the diet may help delay the onset of the disease.
A meta-analysis of nine studies found that extremely preterm infant survivors have a substantial likelihood of developing moderate to severe impairment. The study also showed a statistically significant absolute decrease in impairment between each week of gestation, suggesting improved outcomes as gestational age advances.
Researchers at the University of Hawaii Cancer Center discovered that higher consumption of fruits and vegetables may reduce the risk of invasive bladder cancer in women. The study found significant associations between increased intake of yellow-orange vegetables and lower bladder cancer risk among female participants.
A new study published in BMC Public Health reveals that volunteering is associated with improvements in mental health and increased life satisfaction. Volunteers reported lower levels of depression and enhanced well-being, although the exact mechanisms underlying these benefits are unclear.
UK research found that half of all seven year olds are sedentary for six to seven hours a day, with only half reaching the recommended minimum of moderate to vigorous physical activity. Girls, children of Indian ethnic origin, and those in Northern Ireland were the least active.
A new study finds that obesity is responsible for 18% of deaths among Black and White Americans aged 40-85, nearly triple previous estimates. The condition's impact on mortality varies by age, birth cohort, sex, and race.
A study found that 75% of expert panel members had industry ties, with median seven companies represented, and 76% of recent guideline publications had a similar proportion. The study highlights the potential impact of conflicts on disease definition changes, sparking concerns about current processes.
A study by Indiana University found that higher-performing elementary school students received more diverse and abundant resources from their parents, including extracurricular activities and networking opportunities. Lower-performing students, however, only received targeted resources to improve their academic performance.
A new study published in PLOS ONE found that the setting of scientific peer review panels, such as using teleconferencing technology, has little effect on the outcome of the review process. The researchers reviewed over 1,600 grant applications and found that panelists engaged less discussion during teleconference reviews.
A study by UC San Diego engineers found that dirty solar panels in California lost only 7.4% of their efficiency after 145 days without cleaning, resulting in a mere $20 gain in electricity production. For larger systems, the financial losses are still relatively small.
Researchers investigated rapamycin's effects on aging in mice, finding that it extends lifespan but has only limited impacts on the aging process. The study assessed over 150 traits and found positive effects on memory impairments and red blood cell counts, but no significant impact on wear and tear or disease risk.
A significant association between maternal smoking during pregnancy and offspring conduct problems was observed among genetically related and unrelated mothers. Conduct disorder is a significant concern globally, and the study sheds light on prenatal risk factors for child psychological problems.
Researchers found that COPD increases the risk of developing cerebral microbleeds in deep or infratentorial brain regions. The study also showed that COPD is associated with both large and small vessel disease, indicating a potential impact on overall vascular health.
A recent study found that vitamin D-deficient older individuals are more likely to struggle with everyday tasks and experience physical decline. The researchers suggest that vitamin D supplementation could help prevent these issues, but further studies are needed to confirm the findings.
Prosthetic valve endocarditis is associated with significant morbidity and mortality, and early surgery does not appear to reduce one-year mortality compared to medical therapy. Approximately one-third of patients die within one year after diagnosis, mainly due to complications such as S aureus infection.
A study published in The Lancet found that individuals born between 1915 and 1998 showed better cognitive abilities and daily functioning compared to those born between 1905 and 1998. This improvement was seen despite slightly lower educational attainment in the older cohort.
A large UK cohort study found that children born through assisted reproduction have no higher cancer risk than naturally conceived children. However, rare cancer types were associated with low birth weight and small absolute excess risks.
The study identified 16 new genetic associations related to pollen, dust-mite, and cat allergies, highlighting key pathways in the biological basis of common allergies. This research provides a significant step towards understanding the genetic link between allergens and allergic reactions.
A study analyzing 35,191 patients with coronary heart disease found that about one-third of those who achieved low-density lipoprotein cholesterol goals underwent repeat lipid testing. This may result in significant healthcare resource overuse and waste, estimated to cost around $203,990 annually in one VA network.