Randomised Controlled Trials: Questions, Answers and Musings - download pdf or read online


By Alejandro R. Jadad, Murray W. Enkin

ISBN-10: 1405132663

ISBN-13: 9781405132664

Retail-like quality

Randomized managed trials are essentially the most strong and innovative instruments of study. This ebook is a handy and available description of the underlying rules and perform of randomized managed trials and their function in medical decision-making.

Structured in a jargon-free question-and-answer structure, every one bankruptcy presents concise and comprehensible details on a distinct point of randomized managed trials, from the fundamentals of trial layout and terminology to the translation of effects and their use in riding evidence-based medication. The authors finish every one bankruptcy with their musings, going past the facts or citations, and occasionally even past orthodox correctness to proportion their options and issues approximately diverse features of randomized managed trials, and their position in the wellbeing and fitness system.

Updated to incorporate insights from the decade, this moment version demanding situations over-reliance on randomized managed trials through debating their strengths and boundaries and discussing their optimum use in glossy healthcare. it is also a brand new and more and more correct bankruptcy at the ethics of randomized trials.

World well known writers and thinkers Drs Jadad and Enkin carry you this priceless booklet for busy healthiness execs who desire to comprehend the idea of randomized managed trials and their impact on medical, learn or coverage judgements.

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Extra resources for Randomised Controlled Trials: Questions, Answers and Musings (2nd Edition)

Example text

But other units can equally well be randomized to answer specific questions. Sometimes it is more appropriate to randomize groups of people rather than individuals. This is known as ‘cluster’ randomization. Examples of these clusters are hospitals, families, and geographic areas. g. RCTs evaluating the effect of a videotape on smoking cessation on prison inmates, or the effects on parents following a policy of early discharge from hospital after childbirth). It is also used when the way in which the participants in one study group are treated or assessed is likely to modify the treatment or assessment of participants in other groups.

3. Armitage P, Berry G, Matthews JNS. Statistical Methods in Medical Research, 4th edition. Oxford, UK: Blackwell Publishing Professional, 2001. 4. Pocock SJ. Clinical Trials: A Practical Approach. Chichester, UK: John Wiley & Sons, 1983. 5. Fontanarosa PB, Rennie D, DeAngelis CD. Postmarketing surveillance – lack of vigilance, lack of trust. Journal of American Medical Association 2004; 292:2647–2650. 6. Sacco M, Pellegrini F, Roncaglioni MC, Avanzini F, Tognoni G, Nicolucci A, PPP Collaborative Group.

However, randomization in groups has disadvantages in terms of sample size requirement; the number of patients needed will have to be larger because the groups, rather than the individuals will be the unit of analysis. Individuals within each group cannot be considered as independent because, for example, the location of the community or the characteristics of a particular practitioner may attract a particular type of patient. 10,11 There may be ethical problems involved with randomization of groups of individuals.

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Randomised Controlled Trials: Questions, Answers and Musings (2nd Edition) by Alejandro R. Jadad, Murray W. Enkin

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