Characteristics of research volunteers for inpatient cocaine studies: Focus on selection bias

In order to investigate the selection bias of subjects for inpatient human cocaine studies, characteristics of 859 potential subjects were examined. Excluded subjects compared with accepted group were more likely to be single and male, currently use drugs other than cocaine, have a history of intrav...

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Veröffentlicht in:Addictive behaviors 2000-09, Vol.25 (5), p.785-790
Hauptverfasser: Sofuoglu, Mehmet, Dudish-Poulsen, Susan, Nicodemus, Kristin K, Babb, David A, Hatsukami, Dorothy K
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Sprache:eng
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Zusammenfassung:In order to investigate the selection bias of subjects for inpatient human cocaine studies, characteristics of 859 potential subjects were examined. Excluded subjects compared with accepted group were more likely to be single and male, currently use drugs other than cocaine, have a history of intravenous cocaine use, and have medical or mental health problems or physical complaints. Subjects who were accepted but did not participate, compared with participants, were likely to spend more money on cocaine. These results suggest that potential subjects who were accepted to our research studies may not accurately represent all potential subjects for several important subject characteristics.
ISSN:0306-4603
1873-6327
DOI:10.1016/S0306-4603(00)00064-2