Articles tagged with Population Studies
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 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 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.
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 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.
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 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.
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 new study found that over 50 million people in the US live in counties with no air-quality monitoring, increasing their exposure to air pollution. Rural areas, particularly those in the Midwest and South, were more likely to lack monitoring sites, often due to poverty and limited access to healthcare.
A study found that UK dog populations decreased by 0.9% annually from 1990 to 2021, with a rise in crossbreed and imported dogs. The research highlights concerns about inherited diseases due to limited genetic diversity in pedigree breeds.
A global study found that countries consuming more plant-based proteins have longer adult life expectancies, while high animal-based protein intake is linked to lower infant mortality rates.
A recent study published in Frontiers found that reducing socioeconomic disparities can significantly alleviate adverse birth outcomes, with 48% of low-weight births and 15% of premature births possibly avoiding if all women had the same risk level as White British women living in less deprived areas.
A study found 3,196 poisoning events in European raptors, with scavenging birds disproportionately affected by carbofuran and aldicarb. The most commonly poisoned species was the Eurasian Buzzard, highlighting the need for targeted conservation efforts.
The latest nTIDE report shows a modest gain in employment-to-population ratio for people with disabilities, reaching 37.5 percent in March 2025. Labor force participation also increased slightly to near 38 percent, a level that has become the new normal over the past 12 to 18 months.
A study finds that deporting undocumented immigrants working in the US healthcare system could lead to a significant shortage of skilled personnel. The loss of these workers would be particularly challenging to replace, especially if legal immigration is restricted.
A study found that pedometers capture a remarkable 88% of the health information provided by more advanced accelerometer measurements. Walking at a brisk pace is essential for cardiovascular health optimization, with a minimum cadence of 80 steps per minute strongly associated with good aerobic fitness.
A new study reveals significant shifts in prehistoric hunter-gatherer populations in Europe due to climate changes at the end of the last Ice Age. The population declined by half, but some areas in central Europe showed stability or even an increase in population size, indicating human migration towards the east.
A study by Brown University researchers found that Americans across all wealth levels have poorer survival rates than Europeans. The gap between rich and poor in the US is larger than in Europe, contributing to lower life expectancy.
The partnership aims to identify workforce trends and solutions, with a focus on apprenticeships, stackable credentials, and career pathways. Initial research findings are expected by the end of this year and will serve as a model for other states.
The University of Texas at Arlington has launched a new Mobile Simulation Lab to tackle workforce and training challenges in rural areas. The lab, equipped with advanced patient manikins and simulation bays, will provide specialized training for local healthcare providers to expand their expertise.
A centralized notification pathway increased hypertension treatment in individuals with left ventricular hypertrophy. This study highlights the potential of leveraging underutilized cardiovascular data to enhance healthcare delivery.
A study by Boston University School of Public Health found that over half of US adults experience some form of discrimination, which can lead to higher chances of depression and/or anxiety. Discrimination-related mental health issues were particularly pronounced among multiracial, White, and Asian populations.
University of Michigan researchers developed a statistical method to give a more complete sense of human ancestry. The Gaia algorithm estimates an individual's genetic ancestors, identifies their average location based on movement assumptions, and tracks it back over centuries.
A study published in the International Journal of Manpower found that offering paid time off (PTO) significantly reduces the likelihood of employees quitting their jobs, with a greater reduction for men. PTO does not affect job satisfaction, which independently reduces turnover by 30-40%. Flexible scheduling also reduces turnover, but ...
A population-based surveillance study found that Black infants and children consistently have double the risk for death compared to Whites. The study analyzed data from 1950 to 2019 and estimated excess mortality burden on Black Americans compared to White Americans.
A study confirms plasma p-tau217 as a blood-based biomarker for early Alzheimer's detection in Asian populations. Higher levels correlate with faster cognitive decline, suggesting its potential role as both diagnostic and predictor tool.
A study of top 100 ADHD TikToks found that fewer than half of claims about ADHD symptoms aligned with clinical standards. Young adults' perceptions of the informational value of these videos differed from those of psychologists, leading to a potential spread of misinformation.
Environmental factors such as rainfall and water availability before and during pregnancy predict future growth outcomes of children in Uganda. The study found that children born to mothers living in areas with high rainfall had a lower risk of malnutrition, while those born to mothers experiencing drought had a higher risk.
Researchers found systemic monitoring disparities for six major pollutants across US Census groups, with Native Hawaiians and Pacific Islanders facing the largest gaps. The study highlights the need to consider biases in datasets beyond algorithmic bias.
A longitudinal study of Hispanic mothers found that women with normal blood pressure levels during pregnancy but no mid-pregnancy drop in blood pressure face an increased risk of developing hypertension after giving birth. Tracking blood pressure patterns during pregnancy may help identify these women and prevent cardiovascular disease.
Researchers found that exposure to persistent organic pollutants (POPs) stored in body fat leads to disruptions in lipid metabolism and altered prostaglandin pathways, contributing to long-term higher blood pressure in adolescents. POPs diminish the beneficial effect of bariatric surgery on improved blood pressure.
A Northwestern University study found significant disparities in glaucoma monitoring, with rural and economically distressed communities facing barriers to care. The study identified strategies to improve access, including expanding tele-ophthalmology services, home monitoring technology, and financial support.
A study from the University of Gothenburg found that young teenagers in Sweden reported higher depressive symptoms over two decades, with a greater proportion of adolescents feeling extremely well. Those who are struggling report feeling significantly worse, with increased self-deprecation among young women.
A study of the COVICAT cohort found that almost one in four people infected with SARS-CoV-2 developed long COVID, with symptoms persisting for two years or more. Risk factors included severe COVID-19 infection and pre-existing chronic diseases, while vaccination before infection and a healthy lifestyle appeared to reduce the risk.
A new research paper finds that debate training can promote leadership emergence and advancement by fostering individuals' assertiveness, a key valued leadership characteristic. The study also highlights the benefits of refined communication skills in today's attention economy.
A University of Malaga study highlights the importance of accurate estimates of marine litter to address the environmental concern. The research found that current monitoring strategies are inadequate, and simulation experiments identified the most appropriate sampling strategies to achieve more accurate results.
A new study from the University of Bristol found an association between fish intake and the behavioural development of children. Children who consumed the least amounts of seafood at 7-years-old were likely to be less 'prosocial' at ages 7 and 9 years compared to those who regularly consumed seafood.
Wealthy individuals, despite being major contributors to global emissions, possess three positive climate capabilities: investing in green technologies, knowledge about climate change, and social influence. Researchers suggest harnessing their potential to accelerate the UK's transition to net-zero carbon emissions.
The employment-to-population ratio for people with disabilities remained stable at approximately 37.5% in February, according to the nTIDE report. The labor force participation rate also decreased slightly from 42% to 40.8% for people with disabilities.
Elevated fluoride concentrations have been shown to impair cognitive abilities in children, particularly verbal reasoning skills and sensory processing. The study suggests that even low levels of exposure can have significant effects, highlighting the need for further research on fluoride health risks.
Researchers found that birds of similar age tend to have more similar repertoires, while mixed-age neighbourhoods exhibit higher cultural diversity. The pace of song turnover is driven by individuals coming and going, with older birds serving as 'cultural repositories' of older song types.
Research suggests that higher levels of essential minerals such as copper, manganese, and vitamin B12 during pregnancy may reduce the risk of developing high blood pressure in middle age. The study analyzed data from over 500 women and found a significant association between these mineral levels and lower blood pressure risk.
A new study analyzing health records from 2012 to 2022 found significant differences in cardiovascular disease risk factors among Asian American, Native Hawaiian, and Pacific Islander populations. The research suggests that regular monitoring of risk factors may help prevent cardiovascular disease among these groups.
A study of nearly 900 postmenopausal women found an association between perimenopausal symptom burden and later cognitive function and behavioral impairment. Women with higher menopausal symptom burdens were more likely to experience poorer cognitive function and mild behavioral impairments, both markers of dementia.