Wednesday, September 14, 2011

Shanghai families say kids poisoned by lead (AP)

SHANGHAI � Families living in one of Shanghai's many industrial suburbs say their children are suffering from lead poisoning from nearby factories and recycling facilities.

Officials did not respond to calls Thursday requesting comment after families in Kanghua New Village complained that recent checks showed many of their children were suffering from blood lead levels up to nearly nine times the legal limit.

The soaring use of cars and electric scooters, two of the most sought-after accouterments of affluence in China, is driving strong demand for lead acid batteries. But the production and recycling of those batteries and of other electronics components poses a growing environmental threat at a time when government leaders are striving to deliver more sustainable, people-oriented economic growth.

Residents say Kanghua New Village, compact community of modest but modern apartment blocks, was built about 15 years ago to house families moved off farmland to make way for the Kangqiao Industrial Zone.

The source of the lead contamination was not immediately clear, but the village is located just north of the factory zone, amid corn and vegetable fields and older rural housing, and beside chemical, battery and electronics equipment factories.

Milwaukee, Wisconsin-based Johnson Controls Inc. which operates a battery factory nearby, said it was aware of residents' concerns about lead exposure.

"We acknowledge and take these concerns very seriously. We are working with the government to understand and address these issues. However, we have no reason to believe we are the source of the issue," the company said in an emailed statement.

Johnson Controls' battery plant was named a "national model enterprise for occupational health and safety" in 2006, it said. The factory has lead emissions at about one-seventh the Chinese national standard and employees are regularly tested to ensure their blood lead levels remain low enough, the company said.

On Wednesday evening, residents gathered in the village courtyard and playground were eager to show visitors their children's lab reports, showing blood lead levels of 500 micrograms per liter and higher. The legal limit for children is 100 micrograms per liter; none of those tested had levels below 200 micrograms per liter, and most were in the 300-400 micrograms per liter range.

Those results differed from a batch of identical tests done just a week later that showed no abnormalities � leading some residents to suspect that the second round of tests showing normal results were falsified.

"All the earlier reports were very high and the later reports were under the limit. We don't trust the hospital at all," said one resident, who asked only to be identified by her surname, Cai, because of fears of reprisals.

"They should never have built the village right here by the factories. There are battery and recycling factories all around," she said.

Lead poisoning can damage the nervous, muscular and reproductive systems, and children are particularly at risk.

Decades of allowing manufacturers to disregard safety standards, and of heavy reliance on coal, has left much of the country contaminated by toxic metals and chemicals.

Earlier this year, China began cracking down on emissions of lead and other heavy metals following a spate of poisoning cases, mostly in rural areas near factories. Reports of clusters of cases in big cities like Shanghai are uncommon.

Shanghai has moved much of its heavy industry to its sprawling suburbs, but the city of 23 million is so heavily populated that residential areas are still relatively close to factories.

(This version CORRECTS Corrects figure in second paragraph to nearly nine times)



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Push underway to cut drugs for dementia patients (AP)

Day after day, Hazel Eng sat on her couch, a blank stare on her face. The powerful antipsychotics she was taking often cloaked her in sedation. And when they didn't, the 89-year-old lashed out at her nursing home's aides with such anger and frequency her daughter wondered if her mother would be better off dead.

Until, in a matter of days, everything seemed to change.

Eng's daughter, Jean Lynch, says her mother was moved to a different section of the Ecumen home in North Branch, Minn., and taken off every drug but her daily aspirin. She now beams as she ambles the hallways, reads the newspaper, tells stories and constantly laughs.

"Now I hope she lives till she's 200 years old," Lynch said. "She's just so happy."

Antipsychotics are meant primarily to help control hallucinations, delusions and other abnormal behavior in people suffering from schizophrenia and bipolar disorder, but they're also given to hundreds of thousands of elderly nursing home patients in the U.S. to pacify aggressive and paranoid behavior related to dementia.

The drugs can limit seniors' ability to effectively communicate, socialize or participate in everyday life. But a series of warnings has prompted a movement of nursing homes trying to reduce the decades-old practice, often resulting in remarkably positive changes.

Still, doctors say the drugs are sometimes the only things that help the small number of dementia patients that display psychotic behavior, making them a danger to themselves and others.

Ecumen's three-year-old program called "Awakenings" isn't just about reducing drugs. Personalized care plans use exercise, aromatherapy, pets and other methods. Patients who were sedated and detached are now playing video games, listening to music and playing balloon volleyball.

"It was quiet before but now it's not," said Eva Lanigan, a nurse who piloted Ecumen's program. "Life is going on here again."

A government audit released in May looked at Medicare payments for atypical antipsychotics, as a newer class of the drugs is known, and found in a six-month period that was analyzed in 2007, about one in seven nursing home patients aged 65 or older had been prescribed them. Some 83 percent of Medicare claims for such drugs were for off-label purposes such as dementia, the audit found.

Since 2005, atypical antipsychotics have been under an FDA warning alerting doctors they could increase the risk of death in patients with dementia due to heart attacks or pneumonia. The most common atypical antipsychotics are sold under the brand names Risperdal, Zyprexa, Seroquel, Geodon, Abilify and Invega.

An older class of the drugs, known as typical antipsychotics, was added to the FDA warning three years later.

The warnings did not apply to other medicines widely used in nursing homes, such as the antidepressants Prozac and Paxil, and the anti-anxiety medicines Xanax and Valium.

Still, off-label use of antipsychotics has continued to be widespread. Some see it as a crutch, used to quiet seniors' outbursts or mask difficult personalities, though many others say it's the only pharmaceutical option to treat a patient with a cadre of behavioral problems.

"Give someone enough medications, you don't have to worry about them wandering around or cursing or fighting," said Dr. Karl Dhana, medical director at MorseLife, which operates a nursing home in West Palm Beach, Fla.

For several years, MorseLife has done quarterly reviews of any patient on an antipsychotic, antidepressant or sedative to see if such medication is necessary. At the start, around a quarter of patients were on such drugs. Dhana said the rate is now around 14 percent.

But the shift hasn't been without challenges. There are no FDA-approved drugs for behavioral problems related to dementia. Nursing home patients today are often sicker and showing more signs of behavior problems than in years past.

Dr. Jason Karlawish, a fellow at the University of Pennsylvania's Institute on Aging, said he uses antipsychotics in only about 5 percent of his dementia patients. But sometimes they're the only thing that helps, such as with a woman he treated who was showing clear signs of psychoses, convinced that her house was on fire.

She attacked caregivers, tore pictures off the wall, wouldn't eat or be bathed. When she was put on an antipsychotic, the symptoms subsided, Karlawish said.

"There is a role for these drugs," he said.

Cobble Hill Health Center, a Brooklyn nursing home, began a program several years back to reduce such drugs, but the home's medical director, Dr. Louis Mudannayake still remembers the doomsday prediction of one nurse.

"She said, `Lou, you're crazy! We're going to have all the patients stripping," he recalled.

Cobble Hill has cut the number of patients on antipsychotics from about 30 percent to less than 15 percent, and the nurse's predictions never came true. The staff has learned to help patients avoid outbursts without pills. The solution is often simple: Asking before entering a room, serving a meal earlier or putting on a favorite Nat King Cole album.

Private "old age homes" began cropping up after Social Security was established in 1935 and by the 1950s, antipsychotic drugs were commonplace and remained so for decades. Some estimated as many as 85 percent of nursing home patients were being given antipsychotics before the Nursing Home Reform Law was passed in 1987.

The use of such drugs was reduced � by around one-third, by some estimates � after the law, but then began to increase again once new antipsychotics were introduced in the 1990s.

The FDA's warning on the drugs led to nursing homes again rethinking their use of antipsychotics. Dr. Izchak Kohen, a geriatric psychiatrist for North Shore-Long Island Jewish Health System, surveyed nursing homes across the country and found 39.1 percent had decreased their use of the drugs since the warning.

Spending by Medicaid � the largest payer of nursing home care in the U.S. � also indicates a shift. For all age groups, in the 2006 fiscal year, antipsychotics drug bills totaled about $7.9 billion for Medicaid. The following year, it dropped to about $4.9 billion. Spending in 2008, the latest year for which data is available, totaled about $3.7 billion.

However, the increasing use of generics may have also helped bring the dollar figure down. The addition of the Medicare prescription drug program, for which some Medicaid patients are also eligible, is also believed to have drawn down the spending figure.

It may be difficult to reduce the use of antipsychotics further, Kohen said, because there aren't alternative drugs. Kohen said he continues to have to prescribe the drugs in certain cases, particularly for elderly dementia patients who are paranoid or aggressive.

"Until we come up with better treatments, I think we're going to have to use them," he said.

Nicole Brandt, a pharmacist who teaches geriatric pharmacotherapy at the University of Maryland and has lectured on antipsychotic use, said low doses of the drugs can sometimes help a dementia patient who is agitated, delusional or hallucinating. But sometimes, she said the drugs are used to treat anxiety, depression or sleep problems, for which they're not helpful.

"There are times when you have to wonder if an antipsychotic is the best treatment," Brandt said. "There may be a safer alternative."

Eng, a retired department store worker with advanced Alzheimer's disease, continues to thrive without the drugs, her daughter says. Teeth grinding that started when she was on the medications, has gone away, and she's again able to feed herself finger foods.

More than anything, though, Lynch says she can tell her mother is happy again. She sees it in her face.



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New global killers: heart, lung disease and cancer (AP)

What's killing us? For decades, global health leaders have focused on diseases that can spread � AIDS, tuberculosis, new flu bugs. They pushed for vaccines, better treatments and other ways to control germs that were only a plane ride away from seeding outbreaks anywhere in the world.

Now they are turning to a new set of culprits causing what United Nations Secretary-General Ban Ki-moon calls "a public health emergency in slow motion." This time, germs aren't the target: We are, along with our bad habits like smoking, overeating and too little exercise.

Next week, the U.N. General Assembly will hold its first summit on chronic diseases � cancer, diabetes and heart and lung disease. Those account for nearly two-thirds of deaths worldwide, or about 36 million. In the United States, they kill nearly 9 out of 10 people. They have common risk factors, such as smoking and sedentary lifestyles, and many are preventable.

It's hard to fathom the suffering these maladies are causing in some parts of the world.

For example, until a few years ago Ethiopia had one cancer specialist, Dr. Bogale Solomon, for more than 80 million people.

"Now three more oncologists have joined," he said, and these four doctors struggle to treat patients in a country where cancer drugs and even painkillers are in short supply.

Wondu Bekele took his 2-year-old son, Mathiwos, to that lone cancer center in Addis Ababa when the boy developed leukemia. The desperate father got advice from St. Jude Children's Research Hospital in the United States, procured chemotherapy drugs from India, and against all odds, got his son treated. Yet the little boy died because the hospital had no separate ward to protect him from catching disease from other patients. The father founded a cancer society in his son's name and will represent cancer groups at the U.N. meeting.

"Practically all cancer-related medicines are either nonexistent or beyond the reach of ordinary Ethiopians," he said. "We are struggling to make a difference here."

Advocates may be struggling to make a difference at the U.N., too. Key officials have been unable to agree before the meeting on specific goals � reducing certain diseases or risk factors such as smoking by a specific amount and date. With the global economy in turmoil, finding money to meet any goals could be an even bigger hurdle.

"The timing is difficult with the economy the way it is, but it should not prevent us from setting goals," said Dr. Sidney Smith, who heads the World Heart Federation, an umbrella group of more than 200 organizations focused on heart disease.

"Many of the things we're proposing cost very little" and some, such as smoking cessation, even save money, said Smith, a cardiologist at the University of North Carolina at Chapel Hill. "We're not talking about trying to find a new magic bullet. We're just talking about behavior and cost-effective medicines" like aspirin and generic blood pressure drugs that lower the risk of multiple diseases, he said.

This is only the second time the U.N. has taken up a health issue. The previous one in 2001 led to creation of the Global Fund to Fight AIDS, Tuberculosis and Malaria, with billions from governments and private groups such as the Bill & Melinda Gates Foundation.

Now even rich nations are cash-strapped, and it's unclear whether private groups will step in. Asked whether the U.N. meeting would alter its focus, the Gates Foundation indicated it would not.

"Unfortunately, there is a lack of comparable investment in infectious diseases, which disproportionately affect the world's poorest," said a statement from the foundation. "Our priority will continue to be investing in cost-effective treatments that lead to maximum impact and fill in a gap where other resources are not invested."

However, advocates say there are disparities in chronic diseases, too.

"The common belief that cancer is a problem of rich countries is a misconception," said Dr. Eduardo Cazap, president of the Union For International Cancer Control.

Dr. Ala Alwan, assistant director-general of the World Health Organization, agreed.

"Most countries in Africa are currently overwhelmed with their increasing demand" from cancer patients, and the region also has the highest rates of stroke and high blood pressure in the world, Alwan said.

In Ghana, 23 million people are served by two oncology centers; the country has four cancer doctors and no specialist cancer nurses, said Dr. Allen Lichter, CEO of the American Society of Clinical Oncology, an organization of cancer specialists. The society has trained more than 2,000 doctors in developing countries on cancer care and plans to do more.

Africa also remains the only region in the world where infectious diseases, maternal-infant health problems and poor nutrition still kill more people than noncommunicable diseases do.

Worldwide, stroke and heart-related diseases account for nearly half of all noninfectious disease deaths � 17 million in 2008 alone, WHO says. Next is cancer (7.6 million deaths), followed by respiratory diseases such as emphysema (4.2 million). Diabetes caused 1.3 million deaths in 2008, but that's misleading � most diabetics die of cardiovascular causes.

The U.N. chose to focus on those four diseases and their common risk factors: tobacco use, alcohol abuse, unhealthy diets, physical inactivity and environmental carcinogens.

They have varied impact around the world:

_Europe and North America. These regions are paying the price of too much eating, too little exercise and smoking: heart disease and diabetes dominate. Cancers that are more prevalent with age � breast and prostate � reflect long life spans in these regions where treatment is widely available. In Eastern Europe and the former Soviet Union, lung cancer is the dominant cancer in men. Europe has the highest smoking prevalence in the world: 29 percent.

_Asia. Southeast Asia has the lowest rates of obesity in the world, even lower than Africa. Yet in China, where only 6 percent of the population is obese, nearly 4 in 10 people have high blood pressure. China also has three times the death rate from respiratory diseases as the United States. Many areas also have high rates of infection with HPV, a sexually spread virus that can cause cervical cancer.

In India, the government has launched an aggressive diabetes and high blood pressure screening project. There are 51 million diabetics in India, the second-highest incidence in the world after China. Lung cancer is the most common type of cancer in India among men; in women, it's cervical cancer.

_Central and South America. Cancer prevalence patterns largely resemble North America except that cervical cancer dominates among women in certain areas. Access to care is much poorer in many countries. Dr. Angel Sanchez, an International Cancer Corps volunteer for the American Society of Clinical Oncology, told of conditions at a hospital in Honduras, where there are more than 700 new cancer cases every year for two oncologists to handle.

John Seffrin, CEO of the American Cancer Society, said the U.N. session must lead to specific goals and more money, or a chance to make a difference with these diseases may be lost for decades.

"This is our moment in the sun," he said. "A resolution alone is insufficient."

___

Online:

WHO disease scorecards: http://www.who.int/gho/ncd/en/index.html

WHO global facts: http://bit.ly/msrQt6

U.N. meeting: http://www.ncdalliance.org/summitfaq



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Tuesday, September 13, 2011

Sugar and corn syrup makers in bitter clash (AP)

LOS ANGELES � The setting sun splashes warm hues across a ripening cornfield as a man and his daughter wander through rows of towering plants.

Like any parent, the dad says in the television commercial, he was concerned about high fructose corn syrup. But medical and nutrition experts reassured him that in essence, it's the same as cane sugar.

"Your body can't tell the difference," he says. "Sugar is sugar."

That key claim, made last year by the corn industry as it tries to rebrand high fructose corn syrup as simply "corn sugar," was weighed for the first time by a federal judge Tuesday after a group of sugar farmers and refiners sued corn processors and a lobbying group.

Their lawsuit alleges the father-in-the-cornfield advertisement and other national television, print and online commercials from the corn industry amount to false advertising because sugar is not the same as high fructose corn syrup, the sweetening agent now found in the bulk of sodas and many processed foods.

Sugar makers say there are numerous differences between the white, granular product and the sticky liquid that is high fructose corn syrup. Attorney Adam Fox claimed the syrup industry has even acknowledged as much in the past.

At a hearing on the corn industry's motion to dismiss the lawsuit, Fox showed U.S. District Judge Consuelo Marshall the papers from a case in Mexico filed by the Corn Refiners Association that carefully outlined how sugar and high fructose corn syrup are different. That case in 1997 was related to the export of high fructose corn syrup to Mexico.

"Like the horse and the automobile, sugar and (high fructose corn syrup) are two different products in terms of their physical and functional characteristics, as well as in their production process, distribution and commercial application," corn industry expert Peter Buzzanell stated in an affidavit at the time.

Corn industry lawyers counter that Fox was taking such statements out of context because the Mexico case dealt merely with the physical properties of high fructose corn syrup and never addressed the manner in which the body processes it.

"Sugar and high fructose corn syrup are equivalent as far as how they are metabolized by the body," attorney Dan Webb said.

Webb and other lawyers had filed a motion to dismiss the sugar makers' lawsuit on the grounds that the advertising campaign is protected speech because it forms part of a national conversation about the merits and pitfalls of high fructose corn syrup and sugar in general.

"At the core of this case is clearly a lawsuit filed by the other side that is attempting to stifle debate," Webb said.

He also argued that because the Corn Refiners Association is an industry group and does not directly sell any products, it cannot be sued for false advertising.

Without providing a timeline, the judge said she would issue a ruling on the dismissal motion.

High fructose corn syrup's image has suffered in recent years after public awareness of its widespread use increased and some studies suggested a link to rising obesity levels. Americans increasingly blame the syrup for a range of health problems, and first lady Michelle Obama has said she does not want her daughters eating it.

The American Medical Association has said there's not enough evidence to restrict the use of high fructose corn syrup, although it wants more research.

A year ago, the Corn Refiners Association asked the Food and Drug Administration if it could start using the term "corn sugar" as an alternative to high fructose corn syrup. It could take another year for the FDA to decide on the name, but the corn industry didn't wait before it started using it in advertisements.

Sugar industry lawyers claim corn refiners have already spent $50 million trying to persuade the public to accept corn sugar as a name.

It would not be the first time a food has been rebranded. In 1988, for instance, low erucic acid rapeseed oil became much more popular after it was renamed "canola oil."

More than 100 citizens and consumer groups have written to the FDA as it weighs the name change, many of them slamming the rebranding as a cynical attempt to confuse customers who may be wary of high fructose corn syrup.

"Given the current controversy, consumers who look to avoid (corn syrup) should be able to easily differentiate among products that do and don't use (it)," the Consumers Union, which publishes Consumer Reports, wrote to the FDA.

Expert opinion was divided on high fructose corn syrup. Michael Jacobson, executive director of the Center for Science in the Public Interest, has said that there was no evidence that the sweetener is any worse for the body than sugar.

Michael Goran, a professor of preventive medicine and director of the Childhood Obesity Center at the University of Southern California, said he does not give his kids products containing high fructose corn syrup because it contains high levels of fructose, which can be stored in the liver as fat and trigger gout and hypertension problems.

"As a father and as a consumer, I like to know what I am eating," he said. "The industry has done a very good job trying convince people it's sugar from corn. It's not ... it's manufactured from corn by a highly industrialized process."

Goran and other professionals say the healthiest option is consume smaller amounts of all sugar.

"The U.S is the highest consumer of sugar in the world," Goran said. "To prevent obesity and diabetes, we should be consuming less sugar in general."

___

Watkins can be reached at http://www.twitter.com/thomaswatkins



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Cantaloupe warning issued after Listeria outbreak (AP)

DENVER � Health officials have issued a warning for cantaloupes from a revered melon-producing area of Colorado amid a bacteria outbreak blamed for four deaths in the state and New Mexico, troubling farmers who depend on sales of the fruit.

The warning from the Centers for Disease Control and Prevention came after 16 cases of a strain of Listeria were reported in five states, including 11 from Colorado, two from Texas, and one each from Indiana, Nebraska and Oklahoma.

The agency said it was the first Listeria outbreak linked to cantaloupe in the United States. The U.S. Food & Drug Administration said it had not recalled the melons while it worked to locate the source.

Rocky Ford cantaloupes, named for a region along the old Santa Fe Trail about 130 miles southeast of Denver, are prized for their above-average sugar content. W.C. Fields reportedly said bald guys have "a head shaped like a Rocky Ford cantaloupe," and Lucile Ball had the melons delivered to her dressing room.

"This is really silly. You can get Listeria any place. I eat those melons every day," said Kent Lusk, a fifth-generation cantaloupe farmer from Rocky Ford.

Colorado Agriculture Commissioner John Salazar said the contamination might not be the cantaloupes, but a truck or other source. But several Colorado grocery chains pulled their supplies as a precaution, and New Mexico issued a voluntary recall. State Environmental Health Bureau inspectors were collecting cantaloupe samples from grocery stores and distributors across New Mexico for laboratory analysis.

Listeriosis is a serious infection usually caused by eating food contaminated with the bacterium Listeria monocytogenes. The disease primarily affects older adults, pregnant women, newborns and adults with weakened immune systems.

Colorado health director Chris Urbina said people who are at high risk included people 60 and older, those with weakened immune systems from transplants and people with chronic diseases. Symptoms can include fever, muscle aches, diarrhea, headache, stiff neck, confusion and convulsions. Listeriosis can cause miscarriages and stillbirths.

The CDC warning advised people with cantaloupes at home to see if they came from the Rocky Ford region, and if so, not to eat the melons if they're in a vulnerable group. Health authorities asked people throwing out Rocky Ford cantaloupes to put them in a sealed plastic bag before putting them in the trash.

Several grocery stores in the Rocky Mountain region, including King Soopers, Safeway and Whole Foods, voluntarily pulled Rocky Ford cantaloupes.

"We decided out of an abundance of caution" to remove Rocky Ford melons in 142 Colorado stores, King Soopers spokeswoman Kelli McGannon said.

School cafeterias in at least two Denver-area school districts threw out their Rocky Ford melons. Denver Public Schools cafeterias had planned to highlight them Wednesday in a local foods promotion. Other Colorado products, including grass-fed beef and green chili sauce, also were on the menu, DPS spokeswoman Kristy Armstrong said.

Urbina said the Colorado health department was expecting more test results this week that might help identify the specific source of the cantaloupe sickening people.

Lusk said this year's growing season was almost over and that he doesn't believe the outbreak will have a lasting impact.

"I think there were just a few bad ones," said Adela Licano, a Chamber of Commerce board member who added that about a dozen roadside stands were still open.

"This is a major industry. We hope there is no permanent impact. We're going to get to the bottom of this," Salazar said.

The fatal cases in New Mexico included a 93-year-old man from Bernalillo County, a 61-year-old woman from Curry County and a 63-year-old man from Bernalillo County. Mark Salley, spokesman for the Colorado Department of Public Health and Environment, said the person who died in Colorado was not being identified.

"We extend our sympathy to the families and friends of those who have died from this infection," said Colorado Health Secretary Dr. Catherine Torres. "At this time, based on the preliminary findings in Colorado, we are cautioning people who are at high risk for Listeria infection to avoid eating cantaloupe."

___

Associated Press writers Susan Montoya Bryan in Albuquerque, N.M., and Kristen Wyatt in Denver contributed to this report.

___

Online:

http://rockyfordmelon.com/

http://1.usa.gov/pSzV3M



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Curbs on youngest drivers may have bad side effect (AP)

CHICAGO � Strong driver's license laws have led to fewer fatal crashes among 16-year-olds but with a disturbing side effect � more fatal accidents among 18-year-olds, a nationwide study found.

Many states require young drivers to get extensive experience, including driving with an adult, before getting a full license. But in most states those laws only apply to those younger than 18. The new study suggests some teens are just putting off getting a license until they turn 18 � meaning they have little experience and higher odds for a deadly crash.

"There's an incentive right now to skip out and just wait until you're 18," said Scott Masten, the study's lead author and a researcher with California's Department of Motor Vehicles. "In most states you don't even need to have driver education or driver training" if you obtain a license at 18, he said.

"I was actually bummed by my own findings � to find out we're offsetting the benefits" in young drivers so much, he said. "It was quite unexpected."

The study examined fatal crashes from 1986 to 2007 involving 16- to 19-year-olds. Results appear in Wednesday's Journal of the American Medical Association.

Most previous studies have also linked graduated licensing programs with a decline in fatal crash rates among young teens, but evidence on effects in older teens is mixed.

A journal editorial by researchers with the Insurance Institute for Highway Safety said the potential effects in older teens "is a serious issue deserving attention by researchers and policymakers." The editorial noted that New Jersey is one of the few states where graduated driver's licensing restrictions apply to all first-time applicants younger than 21. That has led to lower crash rates among 17- and 18-year-olds.

Whether these programs should be extended to include older teens merits further study, the editorial said.

Every state has some type of graduated driver's licensing program. These typically allow full, unrestricted licenses to kids younger than 18 only after several months of learning while driving with an adult, followed by unsupervised driving with limits on things like night driving and the number of passengers.

The study authors analyzed fatal crash data from the National Highway Traffic Safety Administration and information on each state's licensing programs.

Comparing states with the most restrictions versus those with the weakest laws or no restrictions, there were 26 percent fewer fatal crashes involving 16-year-old drivers; but among 18-year-old drivers, there were 12 percent more fatal crashes. The differences are estimates, taking into account factors that would also influence fatal crash rates, including seatbelt laws, changes in minimum speed limits, and the fact that 18-year-old drivers outnumber 16-year-old drivers..

The programs appeared to have no effect on fatal crash rates for drivers aged 17 and 19.

Researchers estimate that since the first graduated licensing program began in 1996, the programs have been associated with 1,348 fewer fatal crashes involving 16-year-old drivers but with 1,086 more fatal crashes involving 18-year-old drivers.

During the 1986-2007 study, there were nearly 132,000 fatal crashes of drivers aged 16 to 19. Nearly 20 percent involved 16-year-old drivers, while almost 30 percent involved 18-year-olds.

Evidence suggests that many teens are waiting until they're older to get their licenses; in California for example, only 13 percent of 16-year-olds have driver's licenses, Masten said.

In a nationwide survey of almost 1,400 teens published last month in the journal Traffic Injury Prevention, 1 in 4 who were 18 and hadn't obtained a license cited the hassle of licensing requirements as a reason.

Masten said more research is needed to determine why the fatal crash rate among 18-year-olds rose and whether an increase also occurred in nonfatal crashes.

The study confirms that graduated licensing "is doing what it was intended to do � prevent novice drivers from being in high-risk conditions before they're ready for it," said Dr. Flaura Winston, a pediatrician and traffic injury expert at the Children's Hospital of Philadelphia. But the results also show there's a need for strategies for the novice independent driver at any age, she said.

___

Online:

JAMA: http://www.jama.ama-assn.org

National Highway Traffic Safety Administration: http://www.nhtsa.gov

___

AP Medical Writer Lindsey Tanner can be reached at http://www.twitter.com/LindseyTanner



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