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Selection effect of needle exchange in Anchorage, Alaska
Participation bias (selection bias) may be a problem in studies that attempt to evaluate the effects of needle-exchange programs (NEPs). The present study looked at only those injection drug users (IDUs) who were randomly placed in the needle-exchange condition in a two-arm randomized clinical trial...
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| Main Authors: | , , |
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| Format: | Artigo |
| Language: | Inglês |
| Published: |
Springer New York
2002
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| Subjects: | |
| Online Access: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3456373/ https://ncbi.nlm.nih.gov/pubmed/11937621 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/jurban/79.1.128 |
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