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Showing posts with label Study:. Show all posts
Showing posts with label Study:. Show all posts

Tuesday, April 19, 2011

Study: Alcohol-energy drink combo riskier than booze alone

By Durell Hall, Courier-Journal

Research indicates that drinkers are more likely to drive if they mix alcohol with energy drinks.

EnlargeCloseBy Durell Hall, Courier-Journal

Research indicates that drinkers are more likely to drive if they mix alcohol with energy drinks.

Adding to growing research on the effects of trendy cocktails such as vodka and the energy drink Red Bull, scientists from Northern Kentucky University split 56 college students between the ages of 21 and 33 into four groups. The students received either an alcoholic beverage, an energy drink, a mixed drink with both ingredients, or a placebo.

All drinks were made to look and taste like alcoholic energy drinks, so participants did not know which they were consuming. Researchers measured how quickly the students could execute and suppress actions after the dose and asked them to rate feelings such as stimulation, sedation, impairment and levels of intoxication.

All of the students who drank alcohol showed impaired impulse control. But those who drank the alcoholic energy drink perceived themselves to be less impaired than those who drank the same dose of alcohol alone, the study authors said, which could make them more likely to take risks such as driving while intoxicated.

"This study demonstrates these drinks are different. .. and consumers should be aware," said study author Cecile Marczinski, an assistant professor in the department of psychological science. "It might be appropriate to put warning labels on energy drinks saying they should not be mixed with alcohol."

While combining alcohol with caffeinated beverages is nothing new

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Sunday, April 17, 2011

Study: Genital herpes can be spread when lesions aren't present

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Friday, April 15, 2011

Study: Half of supermarket meat may have staph bug

By Charlie Neibergall, AP

Researchers found more than half of supermarket meat contained Staphylococcus aureus, a bacteria that can make people sick.

EnlargeCloseBy Charlie Neibergall, AP

Researchers found more than half of supermarket meat contained Staphylococcus aureus, a bacteria that can make people sick.

That estimate is based on 136 samples of beef, chicken, pork and turkey purchased from grocery stores in Chicago, Los Angeles, Washington, D.C., Flagstaff, Ariz. and Fort Lauderdale

Researchers found more than half contained Staphylococcus aureus, a bacteria that can make people sick. Worse, half of those contaminated samples had a form of the bacteria resistant to at least three kinds of antibiotics.

Proper cooking should kill the germs. But the report suggests that consumers should be careful to wash their hands and take other steps not to spread bacteria during food preparation.

The nonprofit Translational Genomics Research Institute in Arizona did the work.

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

For more information about reprints & permissions, visit our FAQ's. To report corrections and clarifications, contact Standards Editor Brent Jones. For publication consideration in the newspaper, send comments to letters

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Thursday, April 14, 2011

Study: 2 million babies stillborn every year

By Eileen Blass, USA TODAY

About half of the 2 million babies born stillborn every year could be saved if their mothers had better medical care.

EnlargeCloseBy Eileen Blass, USA TODAY

About half of the 2 million babies born stillborn every year could be saved if their mothers had better medical care.

While the vast majority of stillbirths happen in the developing world, the rates in countries including Britain, France and the U.S. have not dropped to the degree many experts had expected, as rising obesity levels among pregnant women increase the risk.

Experts say providing better obstetric care, treating conditions like syphilis, high blood pressure and diabetes in mothers, among other strategies, could save more than 1 million infants every year. The research was paid for by organizations including Save the Children, the World Health Organization and the Bill & Melinda Gates Foundation. It was published online Thursday in the journal, Lancet.

"It's a scandal there are so many stillbirths that can be prevented," said Joy Lawn, director of global evidence and policy at Save the Children in South Africa, who led the Lancet series. She said the politics of public health has meant the stillbirths problem has been sidelined by maternal and child health programs, even though there are more stillbirths than children killed by AIDS and malaria combined.

In developing countries, most stillbirths are caused by delivery complications, maternal infections in pregnancy, fetal growth problems and congenital abnormalities. In developed countries, the reasons are often unclear why stillbirths occur, and surveillance and autopsy data are patchy.

But the researchers' estimates have a wide margin of error: the numbers range between 2.1 million to 3.8 million stillbirths a year. Those figures are based on reported statistics from 33 countries, largely in the West. For the other 160 countries, where the most stillbirths occur, scientists relied on modeled estimates.

William Easterly, an aid development expert at New York University, said the numbers were based on too little information to be reliable. He was not connected to the research.

"It's basically made-up data," he said.

Easterly said he was glad to see stillbirths on the global agenda, but warned the estimates could distort public health policy.

Finland and Singapore had the lowest stillbirth rates worldwide

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Wednesday, April 13, 2011

Study: More than half of U.S. adults over 20 take vitamins

By Mario Tama, Getty Images

EnlargeCloseBy Mario Tama, Getty Images

The percentage who took at least one dietary supplement increased to 53% in 2006, up from 42% in 1994.

Multivitamins/multiminerals are the most common: Almost 40% of people reported taking them in 2006.

"The majority of dietary supplement users report using them every day over the past 30 days," says Jaime Gahche, nutritional researcher with the National Center for Health Statistics, part of the Centers for Disease Control and Prevention.

These findings are from the National Health and Nutrition Examination Survey, considered the gold standard because thousands of people are interviewed for it.

Other findings:



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Study: Prisons failing to deter repeat criminals in 41 states

By Dirk Lammers, AP

A guard house sits atop a wall of the South Dakota State Penitentiary, where a guard was shot and killed during a failed escape attempt on Tuesday in Sioux Falls, S.D.

EnlargeCloseBy Dirk Lammers, AP

A guard house sits atop a wall of the South Dakota State Penitentiary, where a guard was shot and killed during a failed escape attempt on Tuesday in Sioux Falls, S.D.

In one of the most comprehensive reports of its kind, the Pew Center on the States found that slightly more than four in 10 offenders return to prison within three years, a collective rate that has remained largely unchanged in years, despite huge increases in prison spending that now costs states $52 billion annually.

National recidivism, or return, rates are holding steady even as state officials have launched programs to help prisoners re-enter society and as the recent financial crisis has forced states to cut their budgets and re-evaluate the types of offenders who should return to prison.

MORE: Recidivism report

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Saturday, April 2, 2011

Study: Prostate cancer test doesn't cut death risk

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Friday, April 1, 2011

Study: Spare time, drinking factors into school performance

And what about the students at elite colleges, known for their "work hard, party hard" ethos, who may use substances but make great grades while doing so? Turns out, they're not immune. "I was able to exactly replicate the previous finding with the work-hard, play-hard students," Wyatt said. "Although their grades are inflated to the point where they look super-smart ... you have to realize that they're probably still not recognizing their full potential."

That assertion caused some grief for Wyatt when he took it to a few Ivy League colleges (which he declined to identify). Officials at two of them blew him off, he said, saying that their students still get better grades than anyone else, so who cares?

Other colleges cannot even attempt to make that argument. There has been a decades-long decline in how much students study, Wyatt showed. In the 1960s, college students spent 24 hours a week studying. As of 2005, that number had dropped to 11. There are potential positive implications to students studying less: they're more socially competent, spending more time on leisure and sports, and participating in dynamic learning methods like group work.

But there are negative consequences, too: increased substance use, decreased academic engagement, and decreased professional preparedness. (Wyatt recalled his students in a developmental psychology class, who included text jargon and emoticons in their reflection papers.) "One of the main reasons why students aren't spending as much time studying is they don't know how to study," Wyatt said. "They don't know how to study efficiently."

To that end, Wyatt said, the most important thing to take away from his research is the importance of effective tutoring. "Although tutoring has been proven time and time again," he said, "it's a really hard nut to crack, simply because students resist it almost like it's a sickness. They see it almost as a punishment."

Some colleges are urging students to make tutoring appointments rather than agreeing to visit the lab during open hours. One college this year added an extra resident assistant on each floor of its freshman dorms, plus one "floater RA" per building who visits every room every night to talk with students about their studies. In this way, the RA forms a relationship with the resident and acts as an informal tutor/supervisor to students who might not otherwise seek help. The college, which Wyatt declined to identify because it plans to publish its own study on the experiment, has seen a decline in emergency room visits, campus vandalism, alcohol violations and sexual assault.

Mark Gehrke, a student at Boise State University, said he started a tutoring program at his fraternity this semester, and the average member's grade point average is now 3.5. When other Greek organizations saw the grades of those students, he said, almost all of them added in-house tutors. Gehrke also reinforced the idea that campus activities reduce the negative effects of drinking: when Gehrke got involved in student government, he said, it set his priorities in order, and that newfound passion trickled over into his classroom performance. Offering opportunities for students to socialize on-campus without alcohol — and doing so with something more compelling than "free pizza" — is a great way to improve student success, Wyatt said.

Officials at the session also expressed interest in using the study as a warning sign for new students and their parents — a red flag at freshman orientation to show that, "if you want to succeed," as Wyatt put it, "these are the two main predictors: studying hard and staying off the bottle. That's it."

Some attendees suggested other ideas to improve academic outcomes. "Having worked in housing for 13 years, I'm always thinking about how students spend their time," said Kevin Michael Kerr, general manager of student housing at Greenville Technical College, in South Carolina. At Greenville, starting next year, all students who intend to eventually transfer to a four-year degree program will be required to take a class in which they re-learn how to study and think critically. Halfway through the class's first semester, students are already coming back with better grades.

Wyatt approved. "Educating students to study better is the crux of our entire academic system," he said. "Just being able to say, 'You need to study more' isn't enough. You need to study better."

For more information about reprints & permissions, visit our FAQ's. To report corrections and clarifications, contact Standards Editor Brent Jones. For publication consideration in the newspaper, send comments to letters

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