Hip implants a bit more likely to fail in women


CHICAGO (AP) — Hip replacements are slightly more likely to fail in women than in men, according to one of the largest studies of its kind in U.S. patients. The risk of the implants failing is low, but women were 29 percent more likely than men to need a repeat surgery within the first three years.


The message for women considering hip replacement surgery remains unclear. It's not known which models of hip implants perform best in women, even though women make up the majority of the more than 400,000 Americans who have full or partial hip replacements each year to ease the pain and loss of mobility caused by arthritis or injuries.


"This is the first step in what has to be a much longer-term research strategy to figure out why women have worse experiences," said Diana Zuckerman, president of the nonprofit National Research Center for Women & Families. "Research in this area could save billions of dollars" and prevent patients from experiencing the pain and inconvenience of surgeries to fix hip implants that go wrong.


Researchers looked at more than 35,000 surgeries at 46 hospitals in the Kaiser Permanente health system. The research, published Monday in JAMA Internal Medicine, was funded by the U.S. Food and Drug Administration.


After an average of three years, 2.3 percent of the women and 1.9 percent of the men had undergone revision surgery to fix a problem with the original hip replacement. Problems included instability, infection, broken bones and loosening.


"There is an increased risk of failure in women compared to men," said lead author Maria Inacio, an epidemiologist at Southern California Permanente Medical Group in San Diego. "This is still a very small number of failures."


Women tend to have smaller joints and bones than men, and so they tend to need smaller artificial hips. Devices with smaller femoral heads — the ball-shaped part of the ball-and-socket joint in an artificial hip — are more likely to dislocate and require a surgical repair.


That explained some, but not all, of the difference between women and men in the study. It's not clear what else may have contributed to the gap. Co-author Dr. Monti Khatod, an orthopedic surgeon in Los Angeles, speculated that one factor may be a greater loss of bone density in women.


The failure of metal-on-metal hips was almost twice as high for women than in men. The once-popular models were promoted by manufacturers as being more durable than standard plastic or ceramic joints, but several high-profile recalls have led to a decrease in their use in recent years.


"Don't be fooled by hype about a new hip product," said Zuckerman, who wrote an accompanying commentary in the medical journal. "I would not choose the latest, greatest hip implant if I were a woman patient. ... At least if it's been for sale for a few years, there's more evidence for how well it's working."


___


Online:


Journal: http://www.jamainternalmed.com


Read More..

Asian shares listless, yen firmer but near lows

TOKYO (Reuters) - Most Asian shares barely moved on Tuesday as a holiday in the U.S. overnight and a lack of catalysts kept many investors on the sidelines.


Concerns about the euro zone economy, U.S. fiscal talks and Chinese appetite limited gains in commodities and also weighed on the euro.


The dollar's strength against a basket of currencies <.dxy> also weighed on commodities and capped gains in gold.


"Markets have become top-heavy after rallying through early February on signs of economic recovery in the United States and Europe, and investors now await fresh factors to push prices higher from here," said Tomomichi Akuta, senior economist at Mitsubishi UFJ Research and Consulting in Tokyo.


"The broad sentiment is underpinned by a lack of tail risks, but investors are turning to some potentially worrying elements such as Italian elections and U.S. budget talks," he said.


The MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> was flat after briefly touching a 18-1/2-month high. The index has gained 3.5 percent this year.


Disappointing earnings pushed European shares lower on Monday for a third straight session while U.S. markets were closed for the President's Day holiday.


The risk of an inconclusive outcome in Italy's election this weekend added to concerns while investors kept eyes on Washington where policymakers are discussing a package of budget cuts set to kick in March 1, which analysts warn could hurt the economy.


"We didn't have a lead from Wall St overnight, we also had weakness coming through from European markets overnight, so we were never expecting a strong day," said Juliette Saly, stock market analyst at Commonwealth Securities in Sydney.


Australian shares <.axjo> edged up 0.1 percent as investors focused on local corporate earnings for direction after a three-month rally that has taken the market to 4-1/2 year highs.


The Nikkei stock average <.n225> eased 0.2 percent, after closing up 2.1 percent on Monday to approach its highest level since September 2008 of 11,498.42 tapped on February 6. <.t/>


Spot gold was up 0.3 percent at $1,614.01 an ounce.


London copper inched up 0.3 percent to $8,144 a tonne as Monday's three-week low drew bargain hunting given prospects for a slowly improving global economic recovery. Unease over China's limp return to the market from a week-long break held back upside momentum, however.


U.S. crude fell 0.3 percent to $95.59 a barrel while Brent inched up 0.1 percent to $117.48.


The euro was steady around $1.3344. The currency eased slightly on Monday after European Central Bank President Mario Draghi said in a speech at the European Parliament that "the exchange rate is not a policy target but is important for growth and price stability" and that its rise is "a risk."


YEN JITTERY


The yen remained near recent lows on Tuesday, as attention turned to the appointment of a new Bank of Japan governor.


The yen, which has dropped 20 percent against the dollar since mid-November, fell further at the start of the week after financial leaders from the G20 promised not to devalue their currencies to boost exports and avoided singling out Japan for any direct criticism.


The choice of the next BOJ governor and two deputies has drawn attention as a gauge of how strongly Prime Minister Shinzo Abe is committed to reflating the economy. The G20's message was that as long as Japan pursues aggressive monetary easing to achieve that goal, a weaker yen as a result of such domestic monetary policy will be tolerated, analysts say.


"But that means that some other economy's monetary conditions have been tightened," said Barclays Capital in a note.


"Japan hasn't even changed its policy stance thus far, and the effect of expectations of a looser setting have led to limited moves in domestic interest rates, but the sell-off of the JPY has been marked and has clearly caused unease in other economies," the note said.


Market reaction was muted to the release of the minutes of the BOJ's January 21-22 meeting, when the bank set a 2 percent inflation target and pledged an open-ended quantitative easing from 2014. But the yen was bought when Finance Minister Taro Aso told reporters Japan has no plans to buy foreign currency bonds as part of monetary easing, a trader said.


The dollar was down 0.2 percent to 93.73 yen, but remained near its highest since May 2010 of 94.465 hit on February 11. The euro also eased 0.3 percent to 125.05 yen, below its peak since April 2010 of 127.71 yen touched on February 6.


(Additional reporting by Maggie Lu Yueyang and Thuy Ong in Sydney; Editing by Richard Borsuk)



Read More..

Ecuador's Correa cruises to re-election victory


QUITO (Reuters) - Ecuadorean President Rafael Correa swept to a re-election victory on Sunday that allows him to strengthen state control over the OPEC nation's economy and gives a timely boost to Latin America's alliance of socialist leaders.


The charismatic leftist had 57 percent support compared with 24 percent for runner-up Guillermo Lasso, with almost 40 percent of votes counted. The electoral authority said it did not expect the results to change significantly.


"Nobody can stop this revolution," a jubilant Correa told supporters from the balcony of the presidential palace, after claiming victory.


"The colonial powers are not in charge anymore. You can be sure that in this revolution it's Ecuadoreans in control."


The combative, U.S.-trained economist took power in 2007 and has won strong support among the poor by using booming oil revenues to build roads, hospitals and schools in rural areas and shantytowns.


"Our Ecuador needs a president like Rafael Correa. He has been strong and has not allowed anyone to intimidate him," said Julieta Moira, 46, who is unemployed, as she celebrated outside the presidential palace. "I'm very excited, happy and thankful."


Supporters also gathered in a park in the upscale north end of Quito, waving the signature neon-green flags of Correa's Alianza Pais party.


DEDICATES WIN TO CHAVEZ


Correa, 49, may now be in line to become Latin America's main anti-American voice and de facto leader of the ALBA bloc of leftist governments as Venezuelan President Hugo Chavez has been silenced during his battle with cancer.


Correa said he dedicated his victory to Chavez.


The principal challenge in Correa's new four-year term will be wooing investors needed to boost stagnant oil production and spur the mining industry. A $3.2 billion debt default in 2008 and aggressive oil contract negotiations scared off many.


Critics view Correa as an authoritarian leader who has curbed media freedom and appointed aides to top posts in the judiciary.


"This government has not given us anything good, only insults and taxes. We're tired of all that. I'm concerned that this government has alliances with communist countries," said Celeste Guerrero, a 68-year-old pensioner in Guayaquil.


Even some supporters disapprove of his tempestuous outbursts, confrontations with media and bullying of adversaries.


But the fractured opposition failed to make a consolidated challenge. It fielded seven candidates, making it easy for Correa, and he is now on track for a decade in office.


That is rare stability in a country where three presidents were pushed from office by coups or street protests in the decade before Correa took power in 2007.


He is already the longest-serving president since the return to democracy in the 1970s following a military dictatorship.


Correa's success has hinged in part on high oil prices that allowed for liberal state spending, including boosting cash handouts to 2 million people, and spurred solid economic growth.


He is likely to continue spending heavily to maintain his popularity, but state revenues would dry up if oil prices fell.


He now hopes to diversify the economy away from its dependence on oil, in part by bringing in new investment for the mining sector. Despite promising reserves of gold and copper, mining operations have barely gotten off the ground.


In a news conference on Sunday after polls closed, Correa played down the need for more foreign investment. He insisted the ultimate goal was to ensure economic growth rather than "mortgaging" the country to bring in cash from abroad.


"We welcome foreign investment, and we're already getting plenty of it," Correa said. "Ecuador is one of the most successful economies in Latin America."


Lasso, a wealthy ex-banker and Correa's closest rival, had tried to woo voters with promises of lower taxes. He congratulated Correa on his victory but also took pride in his Creo party taking a quarter of the vote.


"We are now the second-largest political force in the country," said Lasso, who was beaming despite losing.


CONGRESS BATTLE


The other six opposition candidates included former Correa ally Alberto Acosta, former President Lucio Gutierrez and banana magnate and five-time presidential candidate Alvaro Noboa.


Pollsters say some of them focused their campaigns too much on attacking Correa and failed to put forward concrete proposals to entice voters.


Ecuadoreans also chose a new Congress on Sunday.


The Alianza Pais party was expected to win a majority in the legislature, which would let Correa push ahead with controversial reforms, including a media law and changes to mining legislation, without having to negotiate with rivals.


The results of the vote for Congress are not expected to be known for several days, but Correa said he was confident.


"I think we are going to get a majority and we will manage that majority with great responsibility," he told Latin America's Telesur TV network, set up by Chavez and his allies as an alternative to established media.


Correa never shies away from a fight, be it with international bondholders, oil companies, local bankers, the Catholic Church or media that criticize his policies.


He vowed on Sunday to expand state regulations over media groups he has called "dogs" and "hired assassins."


"One of the things we have to fix is an unethical and unscrupulous press that wants to judge, legislate and govern," Correa said. "That goes against the rule of law and we will not allow it."


His criticism of the U.S. "empire" and his clashes with foreign investors and the World Bank have fueled Correa's popularity as a strong-minded leader who stands up to foreign powers that many say meddled in Ecuador's affairs for decades.


He took the global limelight last year when he granted asylum to WikiLeaks' founder Julian Assange. Critics say he did it to brush off accusations that he is curbing freedom of expression in Ecuador.


(Additional reporting by Jose Llangari and Eduardo Garcia in Quito and Yuri Garcia in Guayaquil; Editing by Kieran Murray, Andrew Cawthorne and Eric Beech)



Read More..

Downton Abbey's Season 3 Finale: Shocking, Says PEOPLE's TV Critic






Downton Abbey










02/17/2013 at 10:00 PM EST







Downton Abbey season 3 cast


Carnival Film & Television/PBS


Downton Abbey's third season finale on PBS's Masterpiece was, to say the least, a spoiler's paradise. The episode, which saw the Granthams and servants going on holiday in the Scottish Highlands, started on a joyful note – Lady Mary was pregnant! – and ended with a shock that would have knocked the hat off Lady Violet wobbling head.

SPOLIER ALERT: Major plot points to be revealed immediately.

Cousin Matthew (Dan Stevens) died in a car accident. He was driving back to Downton, so happy he was practically whistling, just after Lady Mary (Michelle Dockery) had given birth to their son – the male Downton heir everyone has been so obsessed with since Season 1.

Many viewers probably saw this coming: For one thing, Stevens had said he was thinking of decamping before season 4 started shooting. And after the finale had its premiere broadcast in Britain in December, he blabbed all about it, including for an interview posted online by The New York Times.

Even so, the death was almost sadistically abrupt and arbitrary, especially after the soft tenderness and growing love between Mary and Matthew in recent episodes. Now we saw dead poor Matthew dumped on the cold mossy ground, eyes wide open.

You can never be sure Downton writer-creator Julian Fellowes won't pull some shameless stunt to kick-start a story – in season 2 Matthew, paralyzed during the war, suddenly leaped out of his wheelchair – but he seemed to want us to be sure that Matthew was 100% gone. I wouldn't have been surprised if the car backed over the corpse.

So ended a terribly sad season of Downton.

We already suffered the loss in childbirth of Lady Sybil (Jessica Brown Findlay). Her deathbed scene was unflinching and deeply moving as she gasped for breath and called for help. Her poor mother (Elizabeth McGovern) sobbed in despair, and the doctors couldn't agree on what to do.

Millions of viewers cried, too, and sighed for a long time afterward. Those who didn't are probably evil.

That scene was the heart of the season: Sybil was so beautiful and kind and gracious and spirited, and so different from her fractious sisters. It was if one were to discover a rare, transcendent soul among the Kardashians. Her death robbed the show of a lovely presence, and also brought out the best moments yet from McGovern and Maggie Smith, as Lady Violet.

It never ceases to annoy me, to be honest, that Lady Violet's feeble witticisms are treated as if they were Oscar Wilde one-liners on loan, like Harry Winston jewels. If you want real witticisms, try any contemporary American sitcom, including FX's Archer.

But this season, as Violet grieved, we saw how much depth Smith can invest in a single moment. At one point in the finale, she looked up as dinner was announced, and in her enormous eyes you saw a woman who wished she could just chuck the whole damn thing and dwell on her memories.

I wish I could say I will miss Matthew, but all in all an unattached Lady Mary is better than a married one. She was never sexier than in the first season, when she sneaked off to bed with velvety, sensual Mr. Pamuk, who unfortunately kicked the bucket while they made love.

Mary is a wonderful creation – the show's most original, complex character – capable of bouncing from romance to sorrow to sarcasm. You could say her love for Matthew transformed her, but it also had the potential to dull her.

Matthew was blandly handsome and good and patient and full of improving notions, but not terribly exciting. He was like a Bachelor from a much earlier period.

There isn't much else to say about the finale. Fellowes worked through a number of plots with his usual tangy glibness. The performances were all delightful, tart, full of emotion, humor and regret.

For now, we can look forward to Lady Mary at her most beautiful, because most woeful, in season 4.

Read More..

UN warns risk of hepatitis E in S. Sudan grows


GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.


U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.


Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.


He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.


Read More..

Japan stocks rally, yen resumes fall after G20

TOKYO (Reuters) - Japanese shares jumped closer to a 33-month high as the yen slumped on Monday after Tokyo dodged direct criticism from G20 peers on the aggressive reflation plans that have weakened the currency.


The G20 opted not to single out Tokyo, but committed members to refrain from competitive devaluations and said monetary policy would be directed only at price stability and growth. Japan said this decision is a green light to pursue its expansionary policies.


The dollar soared 0.7 percent to 94.17 yen inching closer to its highest since May 2010 of 94.465 hit on February 11. The euro added 0.3 percent to 125.51 yen, still below its peak since April 2010 of 127.71 yen touched on February 6.


The Nikkei average <.n225> jumped 2.3 percent as exporters and banks led the pack on the softening yen. <.t/>


The market's focus is now on Prime Minister Shinzo Abe's nominee for the next Bank of Japan governor. Abe is expected to announce his choice in coming days.


Sources told Reuters that former top financial bureaucrat Toshiro Muto is leading the field of candidates to govern the bank. He is expected to intensify stimulus efforts to energise the economy.


"The G20's message is that monetary easing is OK, but not to imply anything about leading a currency weaker. The G20 effect is already seen in Abe's general comments on forex today which steered away from giving specifics on a preferred level or direction for the yen," said Yunosuke Ikeda, a senior FX strategist at Nomura Securities.


Abe said on Monday that the BOJ's monetary easing is aimed at beating deflation, not at manipulating the forex market and weakening the yen, and said correcting excessive yen rises would be an appropriate policy direction. Previously, Japanese officials have noted that the current yen selling was a correction to the past excessive yen strength.


The yen's weakness weighed on emerging Asian currencies while South Korean shares <.ks11> eased 0.3 percent on concerns about the eroding competitive edge for the country's exporters.


"Japan will keep seeking the current policy. The rest of Asia will not just wait and see. That will put more pressure on Asian currencies," said Yuna Park, a currency and bond analyst at Dongbu Securities in Seoul.


A weaker yen would make other currencies relatively stronger against the dollar and fuel speculation that other Asian countries could step in to curb the strength of their currencies, Ikeda said.


The MSCI's broadest index of Asia-Pacific shares outside Japan <.miapj0000pus> eased 0.2 percent. The pan-Asian index briefly hit a 18-1/2-month high on Friday and had its best performance since the week of January 6 with a 1.2 percent weekly gain.


On Friday, MSCI's all-country world index <.miwd00000pus>, a measure of global equity activity, traded down 0.26 percent, while European shares closed lower and U.S. stocks ended flat.


Australian shares rose 0.5 percent as miners gained on hopes that top customer China might start buying after the Lunar New Year holidays, while blue chips Commonwealth Bank of Australia and Telstra Corp Ltd dropped after trading ex-dividend.


Markets in China and Taiwan resumed trading after a week-long holiday.


STOCKS CONSOLIDATE


Data from EPFR Global on Friday underscored that a consolidation was underway in global equities after their recent rally. It showed investors worldwide pulled $3.62 billion from U.S. stock funds in the latest week, the most in ten weeks after taking a neutral stance the prior week. But demand for emerging market equities remained strong, with investors putting $1.81 billion in new cash into stock funds, the fund-tracking firm said.


Demand for commodities will likely be in focus as China returns to the market.


Investors are also expected to focus on fiscal talks in Washington, where policymakers are discussing a package of budget cuts set to kick in on March 1. Analysts say the austerity measures could hurt the U.S. economy.


U.S. crude fell 0.2 percent to $95.63 a barrel but Brent inched up 0.1 percent to $117.81.


Gold rebounded from a six-month low on Monday as bargain hunters resurfaced and jewellers in China returned to the physical market after the Lunar New Year holiday, but a firm U.S. dollar was likely to limit the upside.


(Additional reporting by Jongwoo Cheon; in Singapore; Editing by Shri Navaratnam and Eric Meijer)



Read More..

Bomb kills 64 in Pakistan's Quetta


QUETTA, Pakistan (Reuters) - Sixty-four people including school children died on Saturday in a bomb attack carried out by extremists from Pakistan's Sunni Muslim majority, police said.


A spokesman for Lashkar-e-Jhangvi, a Sunni group, claimed responsibility for the bomb in Quetta, which caused casualties in the town's main bazaar, a school and a computer center. Police said most of the victims were Shi'ites.


Burned school bags and books were strewn around.


"The explosion was caused by an improvised explosive device fitted to a motorcycle," said Wazir Khan Nasir, deputy inspector general of police in Quetta.


"This is a continuation of terrorism against Shi'ites."


"I saw many bodies of women and children," said an eyewitness at a hospital. "At least a dozen people were burned to death by the blast."


Most Western intelligence agencies have regarded the Pakistani Taliban and al Qaeda as the gravest threat to nuclear-armed Pakistan, a strategic U.S. ally.


But Pakistani law enforcement officials say Lashkar-e-Jhangvi has become a formidable force.


TENSIONS


Last month the group said it carried out a bombing in Quetta that killed nearly 100 people, one of Pakistan's worst sectarian attacks. Thousands of Shi'ites protested in several cities after that attack.


Pakistani intelligence officials say extremist groups, led by Lashkar-e-Jhangvi, have escalated their bombings and shootings of Shi'ites to trigger violence that would pave the way for a Sunni theocracy in U.S.-allied Pakistan.


More than 400 Shi'ites were killed in Pakistan last year, many by hitmen or bombs, and the perpetrators are almost never caught. Some hardline Shi'ite groups have hit back by killing Sunni clerics.


The growing sectarian violence has hurt the credibility of the government, which has already faced criticism ahead of elections due in May for its inability to tackle corruption and economic stagnation.


The schism between Sunnis and Shi'ites developed after the Prophet Muhammad died in 632 when his followers could not agree on a successor.


Emotions over the issue are highly potent even today, pushing some countries, including Iraq five years ago, to the brink of civil war.


Pakistan is nowhere near that stage but officials worry that Sunni extremist groups have succeeded in dramatically ratcheting up tensions and provoking revenge attacks in their bid to destabilize the country.


(Reporting by Jibran Ahmed; Writing by Michael Georgy; Editing by Stephen Powell)



Read More..

Beyoncé's Life Is But a Dream: The Best Moments















02/16/2013 at 11:05 PM EST



I am ... still singing!

Beyoncé's HBO documentary, Life Is But a Dream, aired Saturday night and it was a 90-minute whirlwind of music, dance and emotion. And though the singer, 31, has been everywhere recently (the Inauguration, the Super Bowl halftime show, Oprah's Next Chapter), the film was full of new and exciting moments. Here are my favorites:

Baby Bey: A home movie of Beyoncé as a little girl playing with bees made my jaw drop. The scene seems to prove what her fans believe: that she was born to be a superstar known as Queen B. I also loved seeing her singing – and being a typical, giggling teenager – with her sister Solange and Kelly Rowland.

The Heartbreak: From her frank discussion of firing her father as a manager to hearing "the saddest song" she's ever written after having miscarriage, the film – which Beyoncé produced and directed herself – had raw, emotional moments.

Mrs. Carter: Life is like a dream for Beyoncé and husband Jay-Z, who surprisingly shared intimate moments together – giddy over her pregnancy, singing Coldplay's "Yellow" to each other, enjoying solitude on a boat in an undisclosed, exotic location. You could feel the love when she toasted him on his birthday.

Blue Ivy: How cute is she?! When Beyoncé and Jay's baby girl, who turned 1 in January, appeared on the screen at the premiere of Life Is But a Dream at New York's Ziegfeld Theater, the crowd gasped and then let out a collective "aww." And I jammed my fingers on the TV screen the first time I watched, trying to pinch those cheeks. Seeing Beyoncé at home with a baby on her hip was a powerful reminder that the fierce superstar is human afterall.

The Music: Of course! Seeing her sing "Listen" with a gorgeously altered ending in a car convinced me of one thing: Beyoncé is definitely not human! I also loved seeing everything that went into her epic Billboard Music Awards performance of "Run the World (Girls)." I just wish I could do that dance. And is it me or does "Resentment" get grittier and angrier every time she performs it?

Praise Beysus and long live the Queen B!

Read More..

UN warns risk of hepatitis E in S. Sudan grows


GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.


U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.


Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.


He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.


Read More..

After decent rally, perhaps time for a pause

NEW YORK (Reuters) - Stocks could struggle to extend their seven-week winning streak as the quarterly earnings period draws to a close and the market bumps into strong technical resistance.


Many analysts say the market could spend the next few weeks consolidating gains that have lifted the benchmark Standard & Poor's 500 <.spx> by 6.6 percent since the start of the year.


The S&P 500 ended up 0.1 percent for the week, recovering from a late sell-off on Friday after a Bloomberg report about slow February sales at Wal-Mart triggered a slide in the retailer's shares. It was the index's seventh week of gains.


Odds of a pullback are increasing, with the market in slightly overbought territory, said Bruce Zaro, chief technical strategist at Delta Global Asset Management in Boston.


"I do suspect the closing of the earnings season will lead to at least a pause and possibly a pullback," Zaro said. The S&P 500 could shave 3 to 5 percent between now and early April, he said.


Fourth-quarter earnings have mostly beaten expectations. Year-over-year profit growth for S&P 500 companies is now estimated at 5.6 percent, up from a January 1 forecast for 2.9 percent growth, and 70 percent of companies are exceeding analyst profit expectations, above the 62 percent long-term average, according to Thomson Reuters data.


On Thursday, Wal-Mart, the world's largest retailer, is due to report results, unofficially closing out the earnings period. Investors will be keen to see its quarterly numbers, especially after the Friday's news report that rattled investors.


The S&P 500 has gained 4.3 percent since Alcoa kicked off the earnings season on January 8.


The approaching March 1 deadline for across-the-board federal budget cuts unless Congress reaches a compromise adds another reason for caution, especially with recent economic data indicating the recovery remains bumpy.


Manufacturing output fell 0.4 percent last month, the Federal Reserve said on Friday, but production in November and December was much stronger than previously thought.


TESTING RESISTANCE


The S&P 500 has been trading near five-year highs, and it notched its highest level since November 2007 this week. But the gains have pushed the benchmark index almost as far as it is likely to go in the near term, with strong resistance hovering around 1,525 and 1,540, one analyst said.


As a result, the index is set to move sideways, said Dave Chojnacki, market technician at Street One Financial in Huntington Valley, Pennsylvania. "We just don't have the volume or the catalyst right now" to go above those levels, he said.


At the same time, other analysts say, the market has not shown significant signs of slowing, including a break below 15- and 30-day moving averages.


Such moves would be needed to show that momentum is slowing or that the market is at risk of a correction, said Todd Salamone, director of research for Schaeffer's Investment Research in Cincinnati, Ohio. The S&P 500's 14-day moving average is at 1,511 while the 30-day is at 1,494. The index closed Friday at 1,519.


Recent M&A activity, including news this week of a merger between American Airlines and US Airways Group , helped provide some strength for the market this week and optimism that more deals may be on the way.


In the coming days, the market will focus on minutes from the latest Federal Reserve meeting, due to be released on Wednesday, which could provide support if they suggest the Fed will remain on its current course of aggressive monetary easing.


The Fed minutes released in January spooked markets a bit when they revealed that some Fed officials thought it would be appropriate to consider ending asset purchases later in 2013. U.S. Treasury yields rose on that news, though market worries about a near-term end to quantitative easing have since faded.


Among other companies expected to report earnings next week are Nordstrom , Hewlett-Packard and Marriott International


(Reporting By Caroline Valetkevitch; Editing by Leslie Adler)



Read More..