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تعداد نتایج: 16850786 فیلتر نتایج به سال:
OBJECTIVES To describe the variation among physicians in test ordering when caring for children with gastroenteritis and to explore the effect of hospital charge information on such variation. DESIGN Prospective, nonmasked, observational study and controlled trial of price information. SETTING Urban, university-affiliated pediatric emergency department. PARTICIPANTS Pediatric emergency me...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
A pilot study to evaluate the direct cost of treating 51 adults and 50 children with bronchial asthma was conducted. All aspects of the medical care provided over a 6-month period were considered. The mean treatment costs per month were US dollars 22.97 (adults) and US dollars 15.56 (children). The cost of maintenance therapy accounted for 55.5% and 73.4% of the total direct cost treatment for ...
The optimal strategy for ventilator-associated pneumonia remains controversial. To clarify the tradeoffs involved, we performed a decision analysis. Strategies evaluated included antibiotic therapy with and without diagnostic testing. Tests that were explored included endotracheal aspirates, bronchoscopy with protected brush or bronchoalveolar lavage, and nonbronchoscopic mini-bronchoalveolar l...
BACKGROUND Posttraumatic stress disorder (PTSD) is a prevalent disorder that has been associated with elevated rates of medically unexplained physical symptoms, significant functional impairment, and high health care use. However, little is known about actual health care costs associated with PTSD. METHODS We administered the PTSD Checklist (PCL) to 1225 female members of a metropolitan healt...
OBJECTIVE To assess the costs and consequences of a social marketing approach to malaria control in children by means of insecticide-treated nets in two rural districts of the United Republic of Tanzania, compared with no net use. METHODS Project cost data were collected prospectively from accounting records. Community effectiveness was estimated on the basis of a nested case-control study an...
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
OBJECTIVE The purpose of this investigation was to perform a cost-effectiveness analysis of adjunctive oral and intravenous proton pump inhibitor (PPI) therapies for patients with acute peptic ulcer-related bleeding of sufficient severity to warrant hospitalization. DESIGN Cost-effectiveness investigation. Four clinical scenarios were considered: scenario 1, diagnostic endoscopy with oral PPI...
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