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Volunteer bias in nonrandomized evaluations of the efficacy of needle-exchange programs
OBJECTIVE: Nonrandomized comparisons of the incidence of HIV and hepatitis B and C between injection drug users (IDUs) who do and do not attend voluntary needle-exchange programs may be subject to bias. To explore possible sources of bias, we examined characteristics associated with voluntarily begi...
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| Autori principali: | , , , , , |
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| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
Springer-Verlag
2000
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| Soggetti: | |
| Accesso online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3456613/ https://ncbi.nlm.nih.gov/pubmed/10741846 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1007/BF02350966 |
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