Articles tagged with Population Studies
A study found North Korean defectors had higher risks of infection-related cancers but lower risks of breast, colon, and prostate cancers compared to South Korean residents. Over time, their cancer profile changed, suggesting adaptation to South Korean society.
The University of Ottawa Heart Institute, McGill University, and the University of Ottawa have launched ARCHIMEDES, a national health data platform providing Canadian researchers with secure access to diverse health data. The platform enables collaboration, supports advanced analyses, including AI algorithms, and prioritizes public trust.
Researchers found that long-standing mating preferences led to sex-biased interbreeding, resulting in the loss of Neanderthal DNA on X chromosomes. The study reveals a complex social history of human evolution, challenging the idea that survival of the fittest drove human migration.
A new study published in JAMA Network Open reveals that neighborhoods with high housing costs and crowded households are associated with shorter breast cancer survival among women. The research team identified four specific variables that drive this relationship, including financial toxicity and stress.
A UT San Antonio assistant professor is studying how climate change and urbanization affect freshwater ecosystems by tracking the expansion of exotic tropical fish species into northern regions. The project aims to provide practical tools for natural resource managers to protect Texas waterways.
Dr. Sandra Bond Chapman, founder of Center for BrainHealth, was inducted into the Texas Philosophical Society for her groundbreaking work on cognitive neuroscience and brain health. Her leadership has propelled UT Dallas's Center for BrainHealth into an international hub advancing brain health research.
A new University of Michigan study finds large differences in financial outcomes, health and stability among formal and informal self-employed workers. Informal self-employment, including gig work, is concentrated among lower-income workers and faces significant challenges.
A new study by IIASA researchers found that education has a stronger association with lower premature mortality than income or household wealth in India. Adults with higher levels of education are less likely to die prematurely, regardless of their economic status.
Researchers at the University of Missouri are developing AI models to accurately detect melanoma by analyzing images of skin abnormalities. The technology can help dermatologists identify cases that may require closer attention, leading to earlier treatment and improved health outcomes.
A Mizzou researcher developed an antibody that attaches to and lights up EphA2 protein in cancerous tumors, allowing for non-invasive detection and identification of patients who can benefit from targeted treatments. This innovation could save time and money while advancing precision medicine.
A population-based cohort study found that U.S.-born individuals had significantly higher odds of infant mortality, particularly among full-term births. Sudden unexpected infant death was a major contributor to these disparities, highlighting the need for investigation into underlying factors contributing to these disparities.
Researchers found that male fish exposed to vitamin C and potassium perchlorate showed improved fertility and less damage to their testes compared to those exposed only to the chemical. The study suggests a potential safeguard for individuals regularly exposed to these chemicals, including military personnel.
Research from the University of St Andrews found that increases in women's parliamentary representation are related to enhanced public trust in national parliament. The study, which analyzed data from 107 countries, suggests that broad representation within parliament drives trust-building effects.
A population-based cohort study found that virtual sick visits to primary care were associated with a small increase in emergency department use in children aged 3 months or older. The study suggests judicious use of virtual primary care to manage acute illness in children is warranted.
A new study reveals that reducing mortality through large-scale investment in public health is a more effective and ethically sound strategy than encouraging people to have more children. By focusing on lowering mortality rates, countries can slow population decline and maximize the return on investment in their existing population.
New York state's K-12 enrollment declined by more than 250,000 students over the past decade, while charter schools saw a nearly tripled enrollment and homeschooling rates doubled. The decline is largely attributed to an aging population and shifting educational trends.
A new study led by UniSC has pinpointed areas and times when large seabirds like the Antipodean albatross are most at risk of injury or death from fishing longlines. The researchers identified winter hotspots in a latitudinal band near the Tropic of Capricorn, where juvenile and female birds face the highest risk.
A new study found a significant rise in ADHD stimulant prescriptions in Ontario, with a 157% increase from 2015 to 2023. The study calls for better clinical guidance to ensure medications are prescribed appropriately and prevent adverse health effects.
A repeated cross-sectional study found a significant increase in stimulant prescribing for ADHD, with the largest acceleration observed among female adolescents and young adults aged 18 to 64. The study's findings are consistent with prior research but provide new insights into population-level trends.
Research from Florida Atlantic University strengthens evidence that alcohol consumption increases cancer risk, particularly for breast, colorectal, and liver cancers. Higher intake and specific groups, such as African Americans and those with obesity or diabetes, are found to be more vulnerable to the risks.
A recent study found that over 70% of pregnant women consume alcohol-free or low-alcohol drinks, primarily for safety reasons. However, many feel there is a need for clearer information and support on the suitability of these alternatives during pregnancy and breastfeeding.
A Rutgers-led study reveals that exposure to housing hardship before age 5 may influence housing insecurity in early adulthood. Adults who experienced childhood housing insecurity showed similar probabilities of housing insecurity at age 22, even after their housing situation stabilized.
The world's online population grew to 6 billion, while 2.2 billion remain offline, highlighting the importance of digital infrastructure, affordable services, and skills training to achieve universal connectivity. Deep digital divides persist, with uneven coverage, affordability, and skill levels across high- and low-income countries.
Researchers developed a 'humanized' model of aortic valve calcification, enabling testing of potential treatments. The breakthrough could lead to new therapies to stop or reverse calcium buildup, improving outcomes for people with heart disease.
A recent study found that multilingual individuals experience slower biobehavioral aging compared to monolinguals. The study analyzed data from 86,149 participants across Europe and showed that multilingualism is associated with a lower risk of accelerated aging.
Researchers from Woods Hole Oceanographic Institution and partners collected respiratory samples from 85 North Atlantic right whales using drones. The study found that the microbial matter carried valuable information about whale health, including distinct patterns linked to characteristics like robust versus thin whales.
The study found that having no biological offspring was linked to a higher risk of schizophrenia in both men and women. Having more than one offspring compared to one was associated with disease risks across multiple systems. Each additional offspring reduced mental and behavioral disorders by 7% and breast cancer risk by 18% for women.
Researchers developed a Climate BioStress model to detect biological signatures of climate change. A Sentinel System (CBS3) is proposed to track climate stress indicators across biological, built, and social infrastructures.
A conservative dialysis approach resulted in faster and more complete kidney function recovery in patients with acute kidney injury. The study's findings suggest that this strategy could be a viable option for treating dialysis-requiring AKI, warranting further investigation.
A large sample of first-time mothers in the US reported informal human milk sharing, with 1 in 27 participants feeding their infants shared milk. Pediatric practitioners should be aware of this trend and counsel families on risks and recommended risk-reduction strategies.
A recent study published in the Journal of Nutrition Education and Behavior found that most informational materials meant to assist refugees in Australia are written above the recommended reading level. The study evaluated 184 government and community-developed resources, finding nearly all were accurate but 96% too difficult for refug...
A new study analyzing linked electronic health records found that COVID-19 infections led to a higher and longer-lasting risk of rare heart complications, including myocarditis and thrombocytopenia, compared to vaccination. The research team estimated an additional 2.24 cases of myocarditis per 100,000 children after COVID-19 infection.
Researchers at the University of Missouri are exploring the use of extracellular vesicles to target lung cancer. By manipulating these tiny messenger particles, scientists can deliver specific instructions to kill cancer cells while sparing healthy ones.
The study analyzed linked health data for over 57 million people in England, finding drops in cardiovascular disease incidence during the pandemic. However, diagnoses rates have returned to pre-pandemic levels, with increased cases of heart failure and inflammation of heart tissue observed after the pandemic.
University of Missouri researchers are helping farmers prevent disease outbreaks by teaching biosecurity practices, such as hand sanitizing and wearing farm-dedicated shoes. They also provide guidance on safe composting methods to dispose of dead livestock, reducing the risk of disease spread.
A culturally adapted behavioral intervention delivered in Spanish by community health workers significantly reduced unhealthy alcohol use among Latinx adults. Participants showed nearly twice the reduction in heavy drinking days compared to those who received an educational booklet.
A recent study published in Cancer Discovery found that Medicaid expansion is associated with improved five-year cause-specific and overall survival rates among cancer patients. The research showed significant improvements in survival rates for patients living in rural areas, high-poverty areas, and those with higher-mortality cancers.
The latest Global Burden of Disease study reveals a significant increase in cardiovascular disease (CVD) burden worldwide, with CVD causing one in three deaths globally. The report estimates that 79.6% of all CVD deaths are attributable to modifiable risk factors, which has increased globally by 97.4 million since 1990.
A study by University of New Hampshire reports a significant increase in childless women, with 5.7 million more women of prime child-bearing age than expected in 2024. This shift has contributed to 11.8 million fewer births than expected over the past 17 years.
A new Canadian guideline sets out 75 core elements for participant consent forms to ensure transparency and understanding. The guidance aims to simplify the approval process for all involved in clinical research across Canada.
A new study published in PLOS One found that young adult intelligence, education, and parental education are strongly correlated with midlife socioeconomic status. The study of over 6,000 Danish men suggests that educational attainment and IQ at age 12 are the most powerful predictors of midlife SES.
A study found that fine particulate matter air pollution exposure is associated with increased dementia severity and Alzheimer disease neuropathologic changes. Population-based studies are needed to better understand this relationship.
The study reveals that when physical constraints are removed, human mobility follows a power-law pattern, decreasing steadily with distance. The researchers found this pattern across five orders of magnitude, from 10 meters to hundreds of kilometers.
Researchers warn of declining access to safe and reliable water in the US, urging better tracking tools and policy reforms. A new tool, Household Water Insecurity Experiences (HWISE), measures water insecurity in over 1,000 households across the country.
A new study by USC Leonard Davis School of Gerontology researchers finds that Americans with less education are aging faster, with the gap growing over 30 years. The study measured biological aging, which looks at how well organs and systems work, and found that people with more education have slower biological aging.
Ancient Sumerian society harnessed tidal hydrology to irrigate crops, enabling high-yield agriculture without large-scale infrastructure. The research suggests that the early communities' dependence on dependable hydrology drove societal response and defined the golden age of Sumer.
A new database compiled by researchers at the University of Queensland provides a detailed picture of the frog and freshwater fish species on hundreds of Australian islands. The study found that 536 islands have freshwater habitats, with 102 amphibian species and 95 freshwater fish species recorded.
The initiative aims to uncover critical genetic and metabolic mechanisms that may explain the increased incidence of ALS among high-performing populations. By using remote-participation technology, up to 500 participants will be collected, eliminating logistical barriers and expanding who can take part in research.
An international study found that people across cultures tend to rely on their own intuition rather than seeking advice when making complex decisions. The research, led by the University of Waterloo, suggests that understanding this preference can help clarify cross-cultural misunderstandings and improve teamwork.
A Cornell University-led study finds that Americans are increasingly supporting a stronger safety net for older adults, with nearly 58% backing increased Social Security spending. The survey also reveals growing demand for government-provided care programs, such as help with everyday household tasks like grocery shopping and cleaning.
A recent study by Florida Atlantic University found that US adolescents with cannabis use disorder have low treatment completion rates, ranging from 34.2% to 33.8%. The most common reasons for not completing treatment were dropping out, transferring facilities, and being terminated. Adolescents who began using cannabis at a younger age...
Researchers at the University of Illinois are working to bring back biodiversity to the Midwest by analyzing commercially sold seeds and plants. They found that long-lived species were more available than sensitive ones, and certain plant groups were over- or underrepresented in commercial seed mixes.
A recent study found that people in poorer areas receive three times the prescriptions for opioids than those in wealthier areas, despite a decline in overall opioid use in Canada. The research highlights the persistence of inequalities in healthcare and the need for targeted interventions to mitigate the risks of opioid misuse.
A new study by Texas A&M University is tracking the health effects of living in an agrihood community, where residents have access to a working farm and green spaces. The study aims to measure changes in physical activity, nutrition, and social connectedness among participants.
A study published in Pediatrics reveals a sharp surge in nicotine pouch ingestions among young children, with a 763% increase in rate of reported cases between 2020 and 2023. The ingestion rates for other nicotine products declined during the same period.
A new Leicester study found that women with type 2 diabetes are nearly twice as likely as men to have hidden heart damage, according to researchers. The study used advanced MRI scans and data from four studies conducted at the NIHR Leicester Biomedical Research Centre.
Rising ocean temperatures are causing higher concentrations of toxic algae in Arctic food webs, threatening the nutritional and cultural well-being of Alaska Native communities. Bowhead whales serve as indicators of this change, revealing a critical linkage between warming temperatures and increased bowhead toxicity.
A new study by Pusan National University researchers found that middle- and upper-income households in South Korea are disproportionately affected by inflation, challenging conventional views. The study suggests that policy responses need to evolve to address the unique needs of different household types.
The latest nTIDE report shows the employment-to-population ratio for people with disabilities remaining stable at 38.0 percent, similar to May's numbers. Meanwhile, the labor force participation rate increased from 41.4 percent in May 2025 to 41.9 percent in June 2025, indicating more individuals with disabilities are actively seeking ...
Researchers warn that declining response rates and concerns about data accuracy are causing a 'quiet crisis' due to foreign aid cuts and COVID-19 disruptions. The lack of census data compromises public administration and can lead to inadequate resource allocation, resulting in pernicious effects.