Sentences with phrase «across study populations»

In fact, we revealed that lean participants from the different studies varied more in their levels of Firmicutes than did the lean and obese individuals within each study, pointing to systematic biases and biological differences across the study populations.

The association with cancer risk was quite consistent across study populations.

Not exact matches

The IARC acknowledges the difficulty of determining causality, but their report concludes that, «the consistent associations of colorectal cancer with consumption of processed meat across studies in different populations, which make chance, bias, and confounding unlikely as explanations.»

The study measures 31 countries across the globe, accounting for 70 % of the world's female population and 76 % of the world's GDP.

The North American Registry of Midwives provided a rare opportunity to study the practice of a defined population of direct entry midwives involved with home birth across the continent.

Standardised mean differences were derived to take account of the variety of behavioural outcome measures included and random effect models adopted in view of variability of the intervention and target populations across studies.

While there was some variation between the populations that were studied, such as between men and women, people living in different regions, or people with different risk factors, the researchers found that nut consumption was associated with a reduction in disease risk across most of them.

«Our work demonstrates that the generation of genome sequences from a large number of archaic human individuals is now technically feasible, and opens the possibility to study Neandertal populations across their temporal and geographical range,» says Janet Kelso, the senior author of the new study.

A new University of Washington study, with funding and satellite data from NASA and other agencies, finds a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations, which can negatively impact the feeding and breeding capabilities of the bears.

The study population included patients diagnosed with SEER historic stage A localized pancreatic adenocarcinoma between 1988 - 2010 from across the United States.

Skinner said the study has limitations, relying on two - year data that provides snapshots in time across a wide population.

A study published today in the New England Journal of Medicine provides real - world evidence that implementing a combination of proven HIV prevention measures across communities can substantially reduce new HIV infections in a population.

Patterns of community management explained 72 % of the variation in arapaima population sizes across the 83 lakes studied along a 600 - km section of the Jurua River.

But, Hakonarson says, the work is exciting for two reasons: 65 % of kids in the study had that variant, compared with just under 60 % in the control group — a difference that, across a population, is significant, he says.

By limiting movements, the authorities create greater risks: «Preliminary studies showed that there is a critical value for the reduction in movements — around 80 - 90 % — that prevents the spread of an epidemic across a population.

The results have implications both for researchers trying to understand the rapid decline in frog populations across the globe and for conservationists looking to save the animals, said Vance Vredenburg, associate professor of biology at San Francisco State University and co-author of the study.

The research team, led by Woodhams, studied midwife toads, which live in Europe and are highly susceptible to the chytrid fungus, a skin disease that is devastating amphibian populations across the globe.

And as yet, no study has looked at the age related effect of obesity on dementia risk across the whole age range in the population of one country.

Having this allele reduces the risk of severe malaria by about 40 % in Kenyan children, with a slightly smaller effect across all the other populations studied.

«The evidence for recent genetic connection among the three populations, across this vast distance, is solid and convincing,» says Craig Moritz, a University of California, Berkeley, biologist not affiliated with the study.

«A study covering a large number of subjects, like the one in 2015, makes it possible to identify the relevant genes across the entire population; but their variations have only a limited impact on individuals.

«Our multi-ethnic exploration of innate and adaptive immunity highlights a remarkable level of sharing across human populations of genetic variation influencing immune function, while identifying interesting instances of genetic effects on immune function that are specific to a population,» said Nir Hacohen, PhD, MGH and the Broad Institute, study author.

In the largest study of its kind to date, researchers used mitochondrial DNA microsatellites from skin samples gathered from more than 3,000 individual humpback whales across the Southern Hemisphere and the Arabian Sea to examine how whale populations are related to one another, a question that is difficult to answer with direct observations of whales in their oceanic environment.

Hardy went to GS6 looking for possible international collaborators to continue her studies of breast cancer across different populations.

The study's researchers use DALYs, or disability - adjusted life years, to compare the health of different populations and health conditions across time.

The researchers relied on validated self - reported food questionnaires from three studies that enrolled doctors, nurses and other healthcare professionals from across the U.S. Further studies investigating the relationships of protein and carbohydrate - rich foods to weight management in the other populations would be useful.

In the first study of human fungal skin diversity, National Institutes of Health researchers sequenced the DNA of fungi at skin sites of healthy adults to define the normal populations across the skin and to provide a framework for investigating fungal skin conditions.

The data suggest more genetic distinctiveness between populations across the continent than the previous study, says Samuel Wasser, a conservation biologist at the University of Washington, Seattle.

For the JCI study, the team applied the radiotracer to monitor olfactory sensory neuron population dynamics in a rodent model, using PET to measure its uptake across the animals» lifespan, including during age - related neurodegeneration.

The team used the intensive study of the Samburu elephants as a Rosetta stone to translate less detailed information from 45 elephant populations across Africa to estimate natural mortality and illegal killing rates to model population trends for the species.

The researchers synthesised 176 studies to quantify hunting - induced declines of mammal and bird populations across the tropics of Central and South America, Africa and Asia.

In an attempt to answer the question of whether genes that show high levels of variability across different species could also be useful in population - level evolutionary studies, scientists in Brazil, Singapore, and the United Kingdom teamed up to test the utility of numerous genes previously found to be useful in inferring relationships of cactus species.

The authors caution that the results represent averages across general practice populations; this study did not evaluate the outcome of prescribing decisions for individual patients.

However, a new study in The Condor: Ornithological Applications demonstrates that a new, simplified survey method, coordinated across 8 agencies, has tremendous potential to provide accurate population estimates and aid in the species» conservation.

Many countries across Africa and Asia - Pacific may be vulnerable to Zika virus outbreaks, with India, China, the Philippines, Indonesia, Nigeria, Vietnam, Pakistan, and Bangladesh expected to be at greatest risk of Zika virus transmission due to a combination of high travel volumes from Zika affected areas in the Americas, local presence of mosquitos capable of transmitting Zika virus, suitable climatic conditions, large populations and / or limited health resources, according to a new modelling study published in The Lancet Infectious Diseases.

The study, recently published in the journal Ecology Letters, reveals that contrary to expectation, the massive glaciers that expanded and contracted across the region affected animal populations in different ways at different times.

«It's critically important to study the specific genetic consequences in populations across the Americas.»

Dr Fry's team studied the venom of 16 tiger snake populations from across Australia including five island populations in the Bass Strait, and venoms from 11 other snakes in related genera.

«We found that the relatively homogeneous population seen across western Eurasia today, including Europe and the Near East, used to be a highly substructured collection of people who were as different from one another as present - day Europeans are from East Asians,» said David Reich, professor of genetics at Harvard Medical School and co-senior author of the study.

Using this new information they then undertook a study across the Gambia, Kenya and Malawi that included 5310 individuals from the normal population and 4579 people who were hospitalised from severe malaria.

The data collected by observers over the past century allow researchers, conservation biologists and other interested individuals to study the long - term health and status of bird populations across North America.

The ZooKeys article describes the first study of the behavior, diet, and conservation status of this flying fox, finding that the Mortlock Islands support a small population of 900 to 1200 bats scattered across a land surface of only 12 km2 (4.6 square miles).

Published in Nature Communications, the study analysed a population of over 6,000 people with varied ancestry across Latin America to identify new genes associated with hair color, greying, density and shape, i.e. straight or curly.

Approximately 78 percent of the Arctic marine mammal populations included in the study are legally harvested for subsistence across the Arctic.

«Although the definition of underrepresented minority is evolving to reflect local and regional perspectives, findings from this study demonstrate that faculty who are underrepresented in medicine, relative to the general population, have seen little increase in absolute or percentage representation across all schools during this time period, while the prevalence of individuals of underrepresented minority status in the general population had increased to greater than 30 percent by 2010,» the authors write.

Professor Schneider continued: «While there have been studies that have assessed urban expansion and urban population growth across large areas, this is the first study of its kind to use empirical maps and datasets for every settlement and population in the 17 - country region.

Patients with mental illness are two and a half times more likely to be victims of homicide than people in the general population, according to a national study examining the characteristics of homicide victims across England and Wales, published in The Lancet Psychiatry journal.

The study looked at MHC genetic variation in 59 guppy populations across Trinidad, Tobago, Barbados, and Hawaii.

Despite the consistency of results across studies, time periods and populations, it is difficult to establish whether the association between coffee drinking and HCC is causal, or if this relationship may be partially attributable to the fact that patients with liver and digestive diseases often voluntarily reduce their coffee intake.

But as Dr. Fuster is careful to emphasize, it is important to remain cautious, and these estimates will need to be confirmed in a much larger study population across Europe.