نتایج جستجو برای: age validation
تعداد نتایج: 920979 فیلتر نتایج به سال:
CONTEXT Being born very preterm is associated with elevated risk for neonatal mortality. The aim of this review is to give an overview of prediction models for mortality in very premature infants, assess their quality, identify important predictor variables, and provide recommendations for development of future models. METHODS Studies were included which reported the predictive performance of...
this paper describes two rapid, sensitive and specific methods for the determination of fulvestrant in pharmaceutical preparations by high performance liquid chromatography (hplc) and linear sweep voltammetry (lsv). hplc method was used to study the degradation behaviour. fulvestrant was subjected to degradation under the conditions of hydrolysis (acid and alkali), oxidation (30% h2o2). the lin...
just like any other process, vaccine manufacturing procedures are defined as a series of interrelated functions and activities using a variety of specified actions and equipment designed to produce a defined product. to assure the reproducibility and consistency of such processes, they must be carried out using validated equipment and under the established procedures that meet all the acceptanc...
evaluation of functional disability using proper instruments, like health assessment questionnaire (haq) in patients with rheumatoid arthritis (ra), is necessary not only for quality of life assessment, but also as a useful marker for disease activity. haq has been translated into many languages. to validate the persian version of stanford haq. persian version of the haq (pe-haq) with culturall...
OBJECTIVES Financial decision-making (FDM) is crucial for independent living. Due to cognitive decline that accompanies normal aging, older adults might have difficulties in some aspects of FDM. However, an improved knowledge, personal experience and affective decision-making, which are also related to normal aging, may lead to a stable or even improved age-related performance in some other asp...
BACKGROUND Nonexperimental studies of drug effects in large automated databases can provide timely assessment of real-life drug use, but are prone to confounding by variables that are not contained in these databases and thus cannot be controlled. OBJECTIVES To describe how information on additional confounders from validation studies can help address the problem of unmeasured confounding in ...
conclusions patients with chronic hepatitis c and with a ciscun ≤ 1 had a very low rate of cirrhosis while those with a ciscun = 4 had a high risk of cirrhosis. patients with ciscun = 2 or 3 had an intermediate rate of cirrhosis, and therefore needed to perform a liver biopsy to receive a reliable diagnosis. results we enrolled 249 patients who had complete laboratoristic data, and sufficient l...
Age validation is the first step to determine shellfish species age determination. This information is vital for different inferential models used in marine ecosystem management activities. In spite that various validation techniques are used for marking carbon calcium structures, the calcein marking technique for oysters had never been used for age validation in Pinctada mazatlanica. Thus the ...
OBJECTIVES To develop and validate a genetic tool to predict age of onset of aggressive prostate cancer (PCa) and to guide decisions of who to screen and at what age. DESIGN Analysis of genotype, PCa status, and age to select single nucleotide polymorphisms (SNPs) associated with diagnosis. These polymorphisms were incorporated into a survival analysis to estimate their effects on age at diag...
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