Comparison of reporting of ethnicity in US and European randomised controlled trials

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Abstract
We searched Medline for reports of trials published in 2002 using the Cochrane optimal search strategy.2 We downloaded titles and abstracts of study reports into the reference manager database and randomly selected 200 reports for further scrutiny. We identified trials done in the United States and Europe and got full text reports. We assessed any description of the ethnicity of participants in detail. We used a broad definition of ethnicity that included any reference to race, ethnic origin, language, or nationality. We categorised studies as either detailing the ethnicity of subjects or not. Two reviewers independently extracted data on to a prepiloted sheet; they resolved disagreements through discussion.

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