Analytical considerations in the use of capture-recapture to estimate prevalence: case studies of the estimation of opiate use in the metropolitan area of Barcelona, Spain

Article Abstract:

Sample size and constitution have a significant impact on the accuracy of the capture-recapture model to monitor behaviors of specific populations. The model was applied to assess opiate usage in Barcelona, Spain. Problems encountered were sample-related, and included source heterogeneity, population definition and size of sample groups, affecting the model's accuracy.

Health aspects, Models, Usage, Barcelona, Spain (City), Drug use, Narcotics, Logistics, Business logistics, Spaniards

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Risk of mother-to-infant transmission of HIV-1 is not reduced in CCR5/Delta32ccr5 heterozygotes

Article Abstract:

The protection against HIV infection provided by the modified cytokine CCR5 does not seem to work to protect against mother-to-infant transmission of the virus. The is the conclusion of research into the subject.

Statistical Data Included, Maternal-fetal exchange, HIV infection, HIV infections, Disease transmission, Cytokines, Varieties

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