Get Medical Statistics at a Glance, Second Edition PDF

By Aviva Petrie, Caroline Sabin

Clinical records at a look offers a concise and obtainable advent and revision relief for undergraduate clinical scholars and somebody short of a simple creation to this complicated topic. Following the commonly used, easy-to-use at a look layout, each one subject is gifted as a double-page unfold with key evidence followed via transparent, informative tables, formulae and graphs.

This new version of scientific information at a look:

  • Contains a moment color all through to reinforce the appearance, making the topic even more straightforward to appreciate
  • Features labored examples on each one subject, with emphasis on laptop research of knowledge instead of hand calculations
  • Includes new subject matters on premiums and Poisson regression, Generalised linear types, Explanatory variables in statistical types and Regression versions for clustered information.
  • Has an accompanying site http://www.medstatsaag.com/containing supplementary fabric together with a number of selection questions (MCQs) with annotated solutions for self-assessment

Medical information at a look will entice all scientific scholars, junior medical professionals and researchers in biomedical and pharmaceutical disciplines.

Reviews of the final variation

"All doctors will encounter facts of their day-by-day paintings and so a formal knowing of those techniques is useful. this is often delivered to you during this simply understandable succinct textbook.

.I unreservedly suggest this ebook to all clinical scholars, specially those who dislike interpreting reams of textual content. this is often one ebook that may not take a seat in your shelf gathering dirt after you have graduated and also will functionality as a reference book."

4th 12 months scientific pupil. Barts and the London Chronicle, Spring 2003, vol.5, factor 1

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Extra info for Medical Statistics at a Glance, Second Edition

Example text

Unfortunately, matching does mean that the effect on disease of the variables that have been used for matching cannot be studied. 1 shows observed frequencies. Because patients are selected on the basis of their disease status, it is not possible to estimate the absolute risk of disease. e. it gives an indication of the increased (or decreased) odds associated with exposure to the factor of interest. An odds ratio of one indicates that the odds is the same in the exposed and unexposed groups; an odds ratio greater than one indicates that the odds of disease is greater in the exposed group than in the unexposed group, etc.

J. (1983) Clinical Trials: A Practical Approach. Wiley, Chichester. M. M. (1998) Sample size in cluster randomisation. British Medical Journal, 316, 549. PMA14 4/23/05 5:39 PM Page 35 includes information on the aims and objectives of the trial, along with a definition of which patients are to be recruited (inclusion and exclusion criteria), treatment schedules, data collection and analysis, contingency plans should problems arise, and study personnel. It is important to recruit enough patients into a trial so that the chance of correctly detecting a true treatment effect is sufficiently high.

However, observational studies may be either prospective or retrospective. Controls The use of a comparison group, or control group, is essential when designing a study and interpreting any research findings. For example, when assessing the causal role of a particular factor for a disease, the risk of disease should be considered both in those who are exposed and in those who are unexposed to the factor of interest (Chapters 15 and 16). See also ‘Treatment comparisons’ in Chapter 14. Bias When there is a systematic difference between the results from a study and the true state of affairs, bias is said to have occurred.

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