But at least one of the companies' outside experts said Friday that the data quality of the study was similar to that of other trials.
More than a third of the nation's 12.6 million cancer survivors had physical or mental health problems that put their overall health in jeopardy and had a negative impact on their quality of life, according to a recent study of federal health data funded by the National Cancer Institute.
In the Archives of Internal Medicine, a study asked if a better quality of death takes place when per capital cost rise.
The companies say they have been legitimately engaged in ensuring the quality of the data from the study, raising concerns with consultants as early as April 2006 and struggling to get things right since.
The Association of Chief Police Officers' lead on statistics, Douglas Paxton, said the study had noted the quality of crime recording by the UK police was "amongst the best in the world".
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However for any quantifiable measure of market quality, such as costs or speed of execution, no study shows degradation.
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Virgin America is the highest-quality major airline in the United States, according to the 2013 Airline Quality Rating report, an annual study of airline performance.
The American Lung Association's study ranks the air quality of 900 counties and more than 200 U.S. Census-defined Metropolitan Statistical Areas and Combined Statistical Areas--cities and their surrounding suburbs--where an air pollution monitor is present.
That is a debate we ought to have (hopefully informed by evidence of the same high quality as the NBER study).
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The Airline Quality Rating report is the premier statistical study of major airline performance in the United States, and has been conducted annually since 1991.
In addition, the study further revealed that the quality of education in Arua district, as in other rural districts, is adversely affected by a severe lack of resources and professional teachers, as well as high student-to-teacher ratios and large class sizes.
UNESCO: Integrated Intergenerational Literacy Project (IILP)
They included physicians per capita, air quality, quality-of-aging metrics drawn from another Milken Institute study, and crime rates.
And this study makes no effort to gauge the quality of education.
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To account for the sleep variable, researchers in this study kept close tabs on the duration and quality of sleep of the participants.
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One of the worst cases occurred in September 2004 when the tiny biotech firm Atherogenics had to call in Nissen to help reinterpret results of a troubled IVUS study that suffered from data quality problems.
Parks, gardens and green space in urban areas can improve the wellbeing and quality of life of people living there, says a University of Exeter study.
BBC: Green spaces boosts wellbeing of urban dwellers - study
The caveats to our methodology notwithstanding, our study shows that there are big differences in the quality of education relative to spending among counties and is further proof that money is not the only--or perhaps even the most important--factor when it comes to the quality of education.
Mabbott urged me to study the sausage, which she said indicates the overall quality of the breakfast.
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While the innate quality of the European students was very high, for the most part their study habits were frightful.
This study cannot be considered informative, except perhaps about the quality of studies the American Journal of Public Health accepts.
The main beach in Weston-super-Mare received a pass in the MCS Good Beach Guide study, which focuses entirely on water quality standards and the risk of sewage pollution.
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"By nature, estimating mortality in emergencies is an imprecise science, but given the quantity and quality of data that were available, we are confident in the strength of the study, " said Fews Net official Chris Hillbruner.
Five in six surveyed said that their quality of life had been affected and two in three young people felt they were less able to study well.
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Certainly one would agree that the quantity and the quality of the safety data and the involvement of the FDA in the planning of the LibiGel safety study all are positive indications for LibiGel.
In the study, researchers used a questionnaire, called the Carolinas Comfort Scale, to assess quality of life with such questions as whether patients feel a "sensation of mesh" after surgery or pain or movement limitations during daily activities.
"It's an interesting and rigorous study in the field of complementary medicine, and an important step forward in improving quality of care for the 70 percent of patients who undergo chemotherapy and experience nausea and vomiting, " says Dr. Douglas Blayney, president-elect at the American Society of Clinical Oncology.
The APEAL Study complements the Initial Quality Study (IQS), which focuses on problems experienced by owners during the first 90 days of ownership.
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Sleepiness: Elderly people who frequently doze off during routine daily activities, such as reading or watching TV, have a greater chance of suffering a stroke than less sleepy individuals, according to a study in Circulation: Cardiovascular Quality and Outcomes.
Over the past few decades, Bangladesh and various NGOs have instituted several educational programmes such as universal (compulsory and free) primary education and the establishment of village libraries and village study circles in an effort to provide its citizens with access to quality education and thus to promote national economic development, poverty alleviation and social empowerment and transformation.
In a study of 200 senior teams, 97 percent of high-performing teams outperformed industry peers in the quality of new products and services.
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