Sentences with phrase «previous population studies»

In previous population studies, soothability has indeed been found to negatively predict problem behavior in children [24].

Not exact matches

«While the previous decision by the FDA to ban BPA in products used by babies and small children is the step in the right direction, this new study again raises an important question: should FDA consider banning BPA for more than just this vulnerable population?

In many previous U.S. studies, it was not possible to disaggregate planned in - hospital births from planned out - of - hospital births that took place in the hospital after a woman's intrapartum transfer to the hospital.3, 9,10 The latter births represent 16.5 % of planned out - of - hospital births in our population, and misclassification of these births as in - hospital births caused rates of adverse outcomes among planned out - of - hospital births to be underestimated (in some cases, substantially).

Previous attempts to evaluate the Baby Friendly Initiative within an observational study design have often been limited by small sample size or reliance upon ecological measures of confounding factors.16, 17 The advantage of the Millennium Cohort Study is the availability of individual - level social and demographic information, as well as the circumstances of pregnancy and delivery, allowing adjustment for factors that in other studies may be associated with both policy intervention and infant feeding practices, via area or individual population differestudy design have often been limited by small sample size or reliance upon ecological measures of confounding factors.16, 17 The advantage of the Millennium Cohort Study is the availability of individual - level social and demographic information, as well as the circumstances of pregnancy and delivery, allowing adjustment for factors that in other studies may be associated with both policy intervention and infant feeding practices, via area or individual population differeStudy is the availability of individual - level social and demographic information, as well as the circumstances of pregnancy and delivery, allowing adjustment for factors that in other studies may be associated with both policy intervention and infant feeding practices, via area or individual population differences.

«In our study, infants with DP who were the product of a multiple - birth pregnancy were disproportionately higher than in the general population and greater than in previous studies,» Oh said.

This cross-sectional study was to assess the relationship between RA, breastfeeding, and also use of oral contraceptives, in a population of older women from South China, where cultural habits differ from those in the West, where most previous studies were conducted.

Unlike previous studies, the Southampton research found the effect in children from the general population, not just those whose parents suspected they were sensitive to food dyes.

Previous studies linking neonicotinoids to sharp declines in honeybee populations, known as colony collapse disorder, prompted the European Union in 2013 to pass a two - year ban on the use of the pesticides, though bee experts now believe a parasitic mite, poor nutrition or both may also weaken or kill the insects.

A similar study that specifically addressed the relationship between burnout and suicidal thoughts found half of the 4287 surveyed medical students were feeling burned out and 11 % had thought about suicide in the previous year, a figure substantially higher than that in the general population.

However, previous studies had shown that a small population of E. coli can persist in the bladder at levels undetectable in the urine.

After identifying the sex of 474 crocs from seven sites, they discovered that the population was even more male biased than the previous study had indicated, with about 3.5 males for every female.

Previous studies have examined cancer stem cells (CSCs)-- small populations of cells within a tumor that are resistant to chemotherapy.

In a follow - up study, the Bradfords analyzed prescription data from Medicaid recipients, a younger population than the Medicare enrollees in their previous study.

Research has been limited since the previous definition excluded overweight patients, leaving them out of study populations.

Marketers could benefit from the study's findings, says Kim, by pitching brands in a servant context to population groups and regions that have been shown in previous studies to be more materialistic than others, such as younger consumers and residents of metropolitan areas.

Previous studies have estimated that approximately eight percent of the U.S. population will develop PTSD in their lifetime.

Previous studies have shown that cardiovascular disease is more prevalent in RA patients compared with the general population, and contributes to greater mortality in this patient group.

The research results build on previous regional studies of genetic diversity and will help scientists to better understand how humpback whale populations evolve over time and how to best advise international management authorities.

Unlike many previous studies, which focused primarily on adults, the current research concerned adolescents, in a unique population - based study.

«This is important because previous studies conducted in West Africa are not generalizable to the U.S. population.

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.

However, the new study's more recent data covers a population eight times greater than the previous one.

The Turk network used for the new study has been shown to be representative of the U.S. population in terms of age, race and other factors, Melamed said, and introduced players who had no previous connections.

She said that while previous studies have looked at the 10 - year risk of cardiovascular disease among the homeless population, she felt that was not a long enough period of time to take into account the impact of changed behavior, such as stopping smoking.

No previous studies model how migration caused by sea - level rise will affect population other than in the directly affected coastal areas.

Dr Wang says, «Although there is some evidence from previous studies that sporting ability and achievement in sports and athletics are negatively related to 2D: 4D, this might not reflect levels of regular physical activity in the general population.

Previous studies have found an association between marijuana use and psychosis in the general population, but none have rigorously examined marijuana's effects in those at greatest risk for psychosis.

By drawing on previous studies, Dietz estimated what proportion of the population could realistically be persuaded to change their behaviour using financial incentives, mass - media campaigns and so forth.

However, due to technological limitations, previous genetic studies largely focused on mixed populations of cells, obscuring critical nuances in cellular behavior.

The authors of the current study hypothesize that these previous trials may have inadvertently selected subjects who would be nonresponsive to the medication and conclude that future efficacy trials may require the identification of subgroups of patient populations.

The findings support previous studies of other early farmer and hunter - gatherer populations in Germany and elsewhere, says Joachim Burger of Johannes Gutenberg University of Mainz in Germany.

The fact that the findings aligned so closely with those of previous, smaller studies in other populations was surprising even to the scientists, given the subjects» unique genetic background and living environments.

Flegal insists that the results reflect population trends in deaths and are in line with previous studies.

In previous studies, Knight and other researchers have found distinct populations of neurons within a region of the brain called the hypothalamus that can trigger thirst and signal when an animal should start and stop drinking.

Previous studies by D'Odorico, who, in addition to his faculty position at U.Va., is a sabbatical fellow with the National Socio - Environmental Synthesis Center at the University of Maryland, have suggested that the coupling of population and food dynamics might be becoming increasingly unbalanced and that, because of trade dependency, exposure to food insecurity is increasing.

Anthropologists and geneticists know that populations throughout the world migrated from Africa more than 60,000 years ago (see diagram), and that the human genome is at its most diverse in our continent of origin, but previous studies have only scratched the surface of African genetic diversity.

Previous studies have reported that the psychological and social distresses associated with cancer diagnosis have led to an increase in suicides compared to the general population.

Previous laboratory findings as well as estimates of fitness based on genetic clustering of strains in the population suggested a lower relative fitness for MDRTB compared to drug - susceptible tuberculosis, but few studies have directly measured the incidence of second cases of tuberculosis among contacts of both MDRTB and drug - susceptible tuberculosis.

Previous studies have identified higher rates of cancer among patients with IBD than the general population, but these studies have lacked the population size or follow - up to assess trends in lifetime risks in childhood onset IBD.

A previous study of a population in Iceland found that a rare mutation in the gene encoding TREM2 substantially elevated a person's risk of Alzheimer's disease.

Reasoning that previous studies may have missed infected bonobo populations, a team led by Beatrice Hahn, MD, a professor of Microbiology in the Perelman School of Medicine at the University of Pennsylvania, conducted a more extensive survey, increasing both the number and places they sampled wild bonobo populations.

The study also found population densities for the upcoming year are heavily dependent on numbers from the previous year.

Previous studies estimate that 1.8 million arthroplasty procedures are performed each year worldwide, and that number may increase as the population ages.

The new study from Tonegawa's group builds on previous research demonstrating that episodic memories are physically represented in populations of cells in parts of the hippocampus.

Previous studies have estimated the effect of climate change and population growth on wildfire patterns and the risk of damage to buildings and homes in California.

On the basis of the current studies as well as previous reports on the use of intradermal immunization against influenza, hepatitis B, rabies, and other infectious diseases, 2,3,8 it is becoming clear that use of the intradermal route may at least partially overcome the relatively poor influenza - specific immune responses seen in certain at - risk populations, particularly the elderly, in whom the immune response in general is known to diminish with age.9 Moreover, in times of shortage, the dose - sparing intradermal approach might be particularly well suited to the young, healthy persons included in the CDC's high - priority group for vaccination, such as health care workers, as well as to younger, otherwise healthy populations in general.

«Previous studies on Latinos have found this population to have a different pattern of AMD prevalence, incidence, progression and risk factors,» added Dr. Varma.

«We have shown that much of the weekend effect identified in previous studies is likely to be explained by a smaller and on average sicker population of patients being admitted at weekends.

Previous studies have shown links between paternal depression and poor behavioural and emotional outcomes in their children, but no large study in the general population (as opposed to a clinical population) has looked at the link with adolescent depression while taking into account maternal depression as well.

For example, previous reports have stated that genetic diversity in gerbil populations is relatively low, but these reports are biased by divergence in the «outbred» population being studied.