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Full-Text Articles in Medicine and Health Sciences

Heads Or Tails: Randomized Placebo-Controlled Trials, Charles Weijer Oct 2004

Heads Or Tails: Randomized Placebo-Controlled Trials, Charles Weijer

Charles Weijer

No abstract provided.


Waiver Of Consent For Emergency Research, Andrew Mcrae, Charles Weijer Aug 2004

Waiver Of Consent For Emergency Research, Andrew Mcrae, Charles Weijer

Charles Weijer

No abstract provided.


When Are Research Risks Reasonable In Relation To Anticipated Benefits?, Charles Weijer, Paul Miller May 2004

When Are Research Risks Reasonable In Relation To Anticipated Benefits?, Charles Weijer, Paul Miller

Charles Weijer

The question "When are research risks reasonable in relation to anticipated benefits?" is at the heart of disputes in the ethics of clinical research. Institutional review boards are often criticized for inconsistent decision-making, a problem that is compounded by a number of contemporary controversies, including the ethics of research involving placebo controls, developing countries, incapable adults and emergency rooms. If this pressing ethical question is to be addressed in a principled way, then a systematic approach to the ethics of risk in research is required. Component analysis provides such a systematic approach.


Ensuring The Comparability Of Comparison Groups: Is Randomization Enough?, Vance Berger, Sherri Rose Dec 2003

Ensuring The Comparability Of Comparison Groups: Is Randomization Enough?, Vance Berger, Sherri Rose

Sherri Rose

It is widely believed that baseline imbalances in randomized trials must necessarily be random. In fact, there is a type of selection bias that can cause substantial, systematic and reproducible baseline imbalances of prognostic covariates even in properly randomized trials. It is possible, given complete data, to quantify both the susceptibility of a given trial to this type of selection bias and the extent to which selection bias appears to have caused either observable or unobservable baseline imbalances. Yet, in articles reporting on randomized trials, it is uncommon to find either these assessments or the information that would enable a …