Sentences with phrase «few controlled studies»

Unfortunately, there have only been a few controlled studies.

Not exact matches

There are no controls for gender in the study, although the sample is representative of the real world, with fewer women on the list.

Previous studies have controlled for the fact that lesbians are better educated, more likely to be white, have fewer children and live in cities, but a 6 % wage premium still exists.

A roundup of gun control and violence studies by writer German Lopez at Vox shows Americans represent less than 5 % of the world population but possess nearly 50 % of the world's civilian - owned guns, police are about three times more likely to be killed in states with high gun ownership, countries with more guns see more gun deaths, and states with tighter gun control laws see fewer gun - related deaths, among other sobering statistics.

Sandberg peppers the book with studies, reports and personal anecdotes to back up her premise — that for reasons both in and out of their control, there are fewer woman leaders than men in the business world and beyond.

From 2001 to 2011, that study found that fewer than five per cent of Canadian taxpayers in the bottom half of the income scale owned at least 10 per cent of the shares in at least one Canadian - controlled private corporation (CCPC).

Although billions of dollars are being expended annually on family planning services in less - developed countries, and such programs have been promoted by various governments at the national level for four decades, there are only a few studies that have attempted to measure the demographic and health impact of family planning against a «control group» — a similar area which lacks the service.

(Hat tip: Dale Price) A post at Hot Air reports on a study indicating that sex - selective methods of birth control are becoming more prevalent in the U.S., resulting in the birth of fewer girls.

Many say that the antioxidant action provided by superfoods protects against cancer and heart disease, among a host of other ills — while others point out that few carefully controlled studies have been conducted.

In a bit of positive news, a new study by the CDC (Centers for Disease Control) shows fewer dangerous effects for babies and children who contract Zika after they are born.

There is experimental evidence that this old standby really helps: In a study that randomly assigned fearful children to receive a toy «huggy puppy,» kids exhibited fewer nighttime fears and sleep problems than did children in a control group.

Research shows that families typically receive roughly half of the number of home visits expected.16, 17 For example, across three randomized controlled trials conducted of Nurse Family Partnership, average dosage of visits ranged from 45 to 62 percent.18 Research also shows that many, perhaps most, families enrolled in home visiting programs drop out before their eligibility ends.16, 19,20 Some home visiting studies have varied the dosage that families were offered and found that fewer home visits produced outcomes similar to higher levels of exposure.21

The Leslie and Romano study found that nonhospital birth results in far fewer interventions, such as cesarean sections, use of intravenous fluids, and use of medical pain control.

Studies of the Nurse Family Partnership model followed children to 6 years and found significant program effects on language and cognitive functioning as well as fewer behaviour problems in a randomized controlled trial study.24 In addition, more recent evaluations of Healthy Families America have shown small, but favourable effects on young children's development.25, 26

A series of randomized control trials of a nurse home visitation program show a range of positive effects on maternal health, including decreases in prenatal cigarette smoking, fewer hypertensive disorders in pregnancy, and fewer closely spaced subsequent pregnancies., A randomized control study of another program that works with a particularly high - risk population found that participant mothers showed significantly lower depressive symptoms than those in the control group and were less likely to report feeling stressed a year after participation.

The differences were small, though — in the latter study, the babies spent eight minutes less in REM sleep, on average, in those first few hours than babies in the control group did.

In addition, some recent cohort studies provided detailed information of adjustment for confounders, whereas some early case - control studies adjusted for fewer factors.

It may also explain why few placebo - controlled studies have managed to find that gluten has any effect, and why it has been so difficult to find out how gluten may cause problems for non-coeliacs, says Gibson.

Previous studies have suggested that various forms of meditation can improve attention and reduce stress, but there have been few randomised controlled trials — the best way of testing a treatment's effectiveness.

However, some caution in the interpretation of the results is necessary, as underlined in an accompanying editorial by Salvatore Petta, MD, PhD, of the Section of Gastroenterology and Hepatology, Di.Bi.M.I.S., University of Palermo, Italy, and Giulio Marchesini, MD, of the Department of Medical and Surgical Sciences (DIMEC), «Alma Mater» University, Bologna, Italy., In fact, the study included only an elderly Caucasian population and there were few participants in the no - coffee or no - tea control groups, which limit a straightforward conclusion about the effect of coffee and tea on the liver..

«Reduce crime and gun violence and stabilize neighborhoods: A randomized controlled study: As much as a 29 percent reduction in gun violence in poor neighborhoods could translate into hundreds of fewer shootings every year for cities affected by blighted spaces.»

There are few published studies on the effects of uranium mines on nearby residents, but researchers at the Centers for Disease Control and Prevention and the University of New Mexico are working on health assessments, according to EPA officials.

Those results were encouraging enough that within a few months Kaplan started a small clinical study of 11 bipolar patients who had not been able to control their illness with conventional medications.

The study, supported by grants from the National Institutes of Health and the U.S. Centers for Disease Control and Prevention, assigned each cluster to one of three experimental options: a control group (meaning no treatment); a basic cleanup; or a «cleaning and greening» treatment, including a lawn, a few trees and a low perimeter fence — «to show that the lot was cared for and to deter illegal dumping.Control and Prevention, assigned each cluster to one of three experimental options: a control group (meaning no treatment); a basic cleanup; or a «cleaning and greening» treatment, including a lawn, a few trees and a low perimeter fence — «to show that the lot was cared for and to deter illegal dumping.control group (meaning no treatment); a basic cleanup; or a «cleaning and greening» treatment, including a lawn, a few trees and a low perimeter fence — «to show that the lot was cared for and to deter illegal dumping.»

Over the seven - day study period, participants had significantly fewer minutes of daily sedentary time and more daily minutes of active time than controls.

In all three studies, the monkeys on low - calorie diets fared better than controls, exhibiting everything from lower blood lipids to less arthritis to fewer cancer cases.

In the study, MBSR participants reported significantly greater improvement in the ability to pay attention, and also made fewer mistakes on difficult cognitive tasks than those in the control group, which received patient education materials and supportive counseling.

In this new study, the researchers found that, while bumblebees exposed to pesticides collected more pollen than control bees, control bees were able to learn how to manipulate these complex flowers after fewer visits.

The results offer promise for using such incentives in a targeted manner, for example in those sites where fewer people have their HIV under control,» said Dr. Wafaa El - Sadr, HPTN Principal Investigator and study chair.

«Despite having good treatments available, current reports suggest that fewer than half of individuals who need therapy are actually getting appropriate HIV medicine to control their virus, leading to more transmission of disease,» says lead study author Maunank Shah, M.D., Ph.D., an assistant professor of medicine at the Johns Hopkins University School of Medicine.

While it is well known that some individuals within the same community may be exposed to a different number of mosquito bites, very few studies have been carried out to measure the causes of that heterogeneity, or variance, to understand its impact on the control of vector - borne diseases in a way that is relevant to decision making.

Infants in the study had 59 percent fewer emergency room visits and overnight hospital stays during the first six months of life than a control group of infants.

They have generated excitement over the past few decades because scientists can study them in the laboratory to discover the genetic switches that control the development of specialized tissues in the embryo and fetus, and also because of their potential to replace body tissues that have broken down, such as pancreatic cells in those with diabetes or heart muscle cells in those with congestive heart failure.

Gammie and his colleagues studied mice a few days after they gave birth and tested how the animals reacted to differing levels of corticotropin - releasing hormone (CRH), which is released in the brain and helps control behavior.

A study in Taiwan did measure such health effects, but it involved just a few thousand men living in one retirement home and didn't control well for errors, Neal says.

«This study, one of only a few large studies to have follow - up beyond five years, demonstrates that patients who have head and neck cancers and who are being treated with radiation therapy alone have improved local - regional control and no increase in late toxicity when radiation therapy is delivered twice a day in two smaller doses which we call hyperfractionation,» said Jonathan J. Beitler, MD, MBA, FASTRO, lead author of the study and professor of radiation oncology, otolaryngology and hematology / medical oncology at the Winship Cancer Institute of Emory University School of Medicine in Atlanta.

More to the point, few of these studies have yet to be replicated, and most of them rely on a handful of unrepresentative people (US undergrads) who are asked to undertake the kind of lab - controlled tasks that usually share a questionable (at best) relationship with real world activities.

4/4/2007 Smoking Cessation Rates Are Up, Cigarette Consumption Is Down, Says UCSD Study of California's Tobacco Control Program Since the advent of the California Tobacco Control Program, in 1989, the state's young adult smokers are quitting the habit in record numbers and older smokers are consuming far fewer cigarettes, according to a new series of studies from the Moores C...

A few studies show people with Tourette's syndrome have great timing and self - control.

The study essentially concluded that hens fed DE had better eggs and fewer parasites relative to controls.

Furthermore, relatively few studies human studies (Table 1) have incorporated separate CER (standard treatment) or ad libitum (no intervention) control groups.

Incidentally, this is the exact reason that a few studies show that adding cardio or aerobic training to a diet did not improve fat loss: It's not because the cardio didn't work, it was because the researchers didn't control for diet and the subjects ate more!!

Although several studies have investigated the potential for regular aerobic exercise to independently improve body composition and CVD and metabolic risk factors, few properly controlled studies have investigated the effect of n − 3 FA supplementation on these risk factors, particularly body composition.

Creatine malate has been found in a few studies to improve anaerobic output in sprinters and judo practitioners, but we don't have solid, placebo - controlled studies comparing it with monohydrate.

Yoga group participants reported fewer nonfatal «device - treated ventricular events» compared to controls as well as lower reported shock anxiety at the end of the study.

An Arabian study found that ginger extracts suppressed the growth of breast cancer cells, while an animal study at University of Minnesota showed that mice with colorectal cancer that received gingerols had 75 percent fewer tumors than the control group.

Interestingly, a few studies give hope that dietary changes may control PCOS as well as metformin.

Controlled trials and case studies suggest that consistent yoga practice is associated with improvements across a number of domains including tremor reduction, improved muscle strength, balance, posture, flexibility, and functional mobility, better cardiac health, and fewer symptoms of depression and anxiety.

With almost 70 million diagnosed cases of insomnia in America, studies show sleep loss (fewer than seven hours per night) adversely impacts numerous diseases like anxiety, depression, immunity, and oh yeah, weight control.

But, a few years later, a study was finally published in which men could act as their own controls.