• Exclusive offer: 5% discount on MedCalc statistical software purchase

    by Alan Batt. Last modified: 11/02/14

    medcalc

    MedCalc is a statistical software package for biomedical research, including ROC curve analysis, method comparison and quality control tools.

    http://www.medcalc.org

    Offer

    Users of prehospitalresearch.eu can avail of a 5% discount on the purchase of MedCalc software. Contact us for the discount code to be applied during checkout.

    Features:

    Data management

    • Integrated spreadsheet with 16384 columns and up to 100000 rows.
    • Correct handling of missing data.
    • Outliers can easily be excluded.
    • Built-in WYSIWYG text editor.
    • Imports Excel, Excel 2007, SPSS, DBase and Lotus files, and files in SYLK, DIF or plain text format.
    • Easy selection of subgroups for statistical analysis.

    Documentation

    ROC curve analysis

    • Area under the curve (AUC) with standard error, 95% confidence interval, P-value. Offers choice between methodology of DeLong et al. (1988) and Hanley & McNeil (1982, 1983).
    • List of sensitivity, specificity, likelihood ratios, and positive and negative predictive values for all possible threshold values.
    • ROC curve graph with 95% Confidence Bounds.
    • Threshold values can be selected in an interactive dot diagram with automatic calculation of corresponding sensitivity and specificity.
    • Plot of sensitivity and specificity versus criterion values.
    • Interval likelihood ratios.
    • Comparison of up to 6 ROC curves: difference between the areas under the ROC curves, with standard error, 95% confidence interval and P-value.
    • Sample size calculation for area under ROC curve and comparison of ROC curves.
    • Go to the ROC curve analysis section of the MedCalc manual for more information on ROC curve analysis in MedCalc.

    Graphs

    • Lots of graphs, see Graph gallery.
    • Data point identification in graphs.
    • Draw text boxes, lines, arrows and connectors.
    • Name, save and recall graphs and statistics.
    • Statistical info in graph windows.
    • Save graphs as BMP, PNG, GIF, PCX, JPG or TIF files, or as PowerPoint slides (*.pptx).

    medcalc1

    System requirements

    PC with Windows XP, Windows Server 2003, Windows Vista, Windows 7 or Windows 8 (32-bit and 64-bit versions).
    512 Mb of memory.
    20 Mb free space on the hard disk.

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    Alan Batt

    Alan Batt

    Paramedic, educator, researcher
    Alan is a critical care paramedic, paramedic educator and prehospital researcher, currently working around the world as an educator and researcher. He has previously worked and studied across Europe, North America and the Middle East. He holds a Graduate Certificate in Intensive Care Paramedic Studies, and an MSc in Critical Care. His main interests are in care of the elderly, end-of-life care, patient safety, professionalism (including role and identity), and paramedic education.

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