Articles tagged with Population Studies
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.
A study published in the Proceedings of the National Academy of Sciences reveals that sports fans' emotional arousal peaks during pre-game rituals, not during the game itself. Physiological data from a Brazilian soccer fan club shows sustained arousal levels comparable to the game.
A comprehensive study found dementia rates were 25% higher in the Southeast compared to the Mid-Atlantic. The Northwest and Rocky Mountains had 23% and 18% higher rates respectively. These differences remained even after accounting for factors like age, race, and cardiovascular disease.
A global research project has identified the most critical locations in the world's oceans for better marine conservation efforts. The study found that current Marine Protected Areas only cover 8% of the ocean, highlighting the need for additional protection and mitigation strategies to conserve threatened marine megafauna.
Individual incarceration is strongly associated with increased mortality in the US, as well as higher all-cause mortality among people living in counties with high incarceration rates. Incarcerated individuals face a 39% higher risk of dying from any cause and are three times more likely to die from drug overdose.
A recent randomized controlled trial found that a group-based intervention fostering communication and coping skills in a culturally tailored way improved outcomes for Latina breast cancer survivors and their caregivers. The study, published in CANCER journal, demonstrated high engagement among participants and clinically significant i...
A new study published in the Journal of Gerontology found that Asian Americans no longer report better health outcomes than white Americans among US adults aged 50 and over. The prevalence of disability declined across every other racial group, but remained stagnant among US-born Asians since 2005.
The study analyzed the impact of climate change during the late Palaeolithic and found that humans migrated eastwards to adapt to new climate conditions. The European population may have decreased by up to half during the Younger Dryas event, but populations in central and eastern Europe increased.
Researchers found that urban areas and male middle-aged patients are more likely to receive high-dose opioid prescriptions. The study analyzed over 3 million Medicaid claims in Missouri from 2017 to 2021, identifying risk factors for opioid use disorder.
A comprehensive study found that the public generally supports individuals with black lung disease and genetic kidney disease over those with COVID-19 and alcohol use disorder. However, a lingering stigma surrounding alcohol use disorder led to it being considered least deserving of a transplant.
Research found that early-life growth plays a significant role in determining final adult height, accounting for about 67% of the variation. Childhood growth also accounted for a substantial proportion of the difference in adult height.
Research suggests that antibiotics taken during infancy, especially in the first three months, may lead to earlier onset of puberty in girls. The study, which analyzed data on over 322,000 children in South Korea, found a significant association between early antibiotic exposure and increased risk of central precocious puberty.
A new study from Texas A&M University found that residents' knowledge of environmental health risks is the most important factor in their decision to take a home buyout. Residents who live in areas with high levels of risk and are more concerned about environmental risks are more willing to accept a buyout.
Researchers found that patients taking HIV drugs called NRTIs are substantially less likely to develop Alzheimer's disease. The study, led by Jayakrishna Ambati, analyzed data from two large health insurance databases and determined a significant reduction in Alzheimer's risk among patients on NRTIs.
A study published in The Lancet Regional Health – Europe found that patients with low household income were more likely to be diagnosed late and receive less effective treatment for liver cancer. This highlights the need for targeted screening in deprived areas to improve early diagnosis and survival rates.
A recent study found that early-stage stomach cancer diagnoses are increasing, marking a major progress in detecting this deadliest form of cancer. The study suggests advancements in endoscopic imaging and more widespread use of upper endoscopy may be contributing to these shifts.
The latest nTIDE report shows the employment-to-population ratio for people with disabilities (37.4%) and without disabilities (75.1%) remained stable in April 2025. Labor force participation rates for people with disabilities (41%) increased, while those without disabilities (77.9%) decreased.
Researchers found that a fertility rate of at least 2.7 children per woman is needed to reliably avoid eventual extinction in small populations. A female-biased birth ratio can reduce extinction risk, helping more lineages survive over time.
Researchers identified risk factors for sudden unusual mental or somatic experiences, including past psychedelic use, reality distorting practices, and extensive spiritual practice. These findings can help clinicians diagnose and treat associated suffering, and inform the development of practical guidelines.
Researchers investigated the potential link between herpes zoster vaccination and dementia. They found that vaccination may be associated with a lower risk of developing dementia in older adults. The study's findings suggest a possible causal relationship between vaccination and reduced dementia occurrence.
A new study reveals promising progress toward predicting how patients with major depressive disorder will respond to antidepressant medications. Brain connectivity patterns were found to significantly improve predictions of treatment response across two large, independent clinical trials.
A new study provides a method to estimate sample size required for microbiome studies based on effect sizes and analysis methods. For strong associations, around 500 participants were needed to achieve 80% statistical power, while weaker associations may require thousands of samples.
A study of nearly 11,000 individuals found that men with panic disorder are more vulnerable to developing problematic drinking behaviors than women, potentially due to self-medication. The research highlights the need for sex-specific assessment and intervention strategies in treating comorbid conditions
A multi-state study found that only half of high-risk adults with flu received antiviral treatment, highlighting a critical need for timely care. The gap in treatment increases the risk of severe flu complications, particularly among older adults and those with underlying conditions.
A study of 50-90 year olds across 29 countries found that middle-aged Americans experience high levels of loneliness, unlike other countries. The reasons for this vary by country, but factors like unemployment, depression, and poor health contribute to the problem.