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Calculators, Formulas, Algorithms


  • Software : Web versionCalculator
    Calculates the Sensitivity, Specificity, PPV, NPV, LR+, and LR-, Relative Risk (RR), Absolute Relative Risk (ARR), Number Needed to Treat (NNT), Odds Ratio (OR), Relative Risk Reduction (RRR).
  • Database : Stat!Ref
    "EBMcalc is a unique computerized medical reference and tool set. EBMcalc encompasses a wide array of pertinent medical formulae, clinical criteria sets and decision tree analysis tools used everyday by clinicians, medical educators, nurses and health care students of all types. With the growing emphasis and application of Evidence Based Medicine, there has never been a greater need for a system such as EBMcalc. Medical error detection and elimination are also hot topics in the new millennium. EBMcalc can help in these areas as well. To practice, teach and learn medicine based on solid, literature based data, practitioners are easily overwhelmed by the breadth of information that they must master. EBMcalc helps simplify this task by assembling easy to use, interactive tools used to learn Evidence Based Medicine."--Website.
  • Software : STAT!RefCalculator
  • Software : AHRQWebsite
    The ePSS is an application designed to help primary care clinicians identify clinical preventive services that are appropriate for their patients. Based on the current, evidence-based recommendations of the U.S. Preventive Services Task Force (USPSTF)
  • WebsiteMobile ApplicationiPhone/iPod touch/iPad
    "Scientists and educators have used the Carnegie Embryo Collection, housed at the National Museum of Health and Medicine, to define normal human embryo development for decades. A database, called the Virtual Human Embryo, has been created to provide digital serial sections of human embryos from the collection. The Embryo App uses mobile telecommunication and multimedia technologies to add interactive capabilities to the digital information, enhancing our understanding of embryo development. This App is part of the National Library of Medicine's program to fulfill the NLM's role as a provider of medical, science and health care information using mobile technologies. The Eunice Kennedy Shriver National Institute of Child Health & Human Development has provided support for two components of the imaging project. Scientists at Louisiana State University Health Sciences Center has supported the 3D-reconstruction of the collection to add visual dynamics to the images"--Website.
  • Software : STAT!RefCalculator
  • Software : STAT!RefCalculator
  • Software : STAT!RefCalculator
  • SoftwareCalculator
  • Nashef, S. A.
    SoftwareCalculatorUsers must sign up for a free account for access to site
  • Digital2002
  • SoftwareCalculator
  • [developed by Paul Jones].
  • Fraser Cameron.
    Type 1 Diabetes Mellitus or Juvenile Onset Diabetes is currently a permanent, incurable disease that removes the ability of the patient's body to control blood glucose levels. This loss of automatic control greatly increases the patient's exposure to clinical risks of high and low blood glucose levels. These risks can be mitigated through tight, regulation of blood glucose levels using insulin injections, but only at the price of paying frequent attention to the blood glucose levels and manually providing accurate dosing decisions. This can be very trying for all patients, especially teenagers and children. Recent technological advances enable automatic external regulation of patient's blood glucose levels. Pumps can infuse insulin into the subcutaneous tissue to lower blood glucose levels. Continuous glucose monitors can sense subcutaneous glucose levels, specifically the rises caused by meals and the drops caused by insulin. This has caused a flurry of control and modeling research, in the hopes of mitigating the clinical risk without the price of constant human attention. The most common approach, and the one taken here, is to use model predictive control, where the predictions from a model of glucose dynamics are optimized against a cost function using the future insulin injections. We directly minimize the asymmetric clinical risk instead, and recognize that our control authority (the potential effects of injecting insulin) is largely limited to reducing the blood glucose level. We further consider likely future blood glucose measurements, since we both respond better to positive disturbances than negative ones, and because negative disturbances are more risky. Also, we explicitly estimate the uncertainty of predictions, since glucose dynamics incorporate uncertainty from the complex biology, stochastic patient behaviour, and extrapolation. More uncertainty should mean more cautious insulin injection. Lastly, since meals occur faster than insulin acts and can raise the blood glucose by 2 to 4 times the width of the acceptable range, this work develops a novel Bayesian framework for detecting meals and estimating their effects. This work improves prediction root mean squared error by 20% relative to predictions excluding meals for prediction horizons from 1 to 4 hours and improves robustness to meals. These prediction improvements alone reduce the avoidable clinical risk by 38% relative to predictions excluding meals. When the improvements to the predictions are combined with minimizing clinical risk under uncertainty and measurement anticipation the avoidable clinical risk is reduced by 30% relative to a published MPC controller that has privileged information and tunes independently for each patient.

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MicroMedex: Premier pharmaceutical information source containing multiple databases and drug reference tools. Of particular value is DRUGDEX Evaluations, one of the most comprehensive drug sources available.DynaMed Plus is a clinical information resource used to answer questions quickly at the point-of-care. Easy-to-interpret Levels of Evidence help clinicians rapidly determine the quality of the available evidence.

Biomedical and pharmacological abstracting and indexing database of published literature, by Elsevier. Embase® contains over 32 million records from over 8,500 currently published journals (1947-present) and is noteworthy for its extensive coverage of the international pharmaceutical and alternative/complementary medicine literature.

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