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SAMPLING STUDIES TO ESTIMATE THE HIV PREVALENCE RATE IN FEMALE COMMERCIAL SEX WORKERS
Affilliation
Ministério da Saúde. Brazilian Departament of STD, AIDS and Viral Hepatitis. Monitoring and Evaluation Advisory. Brasília, DF, Brasil.
Oswaldo Cruz Foundation. Sérgio Arouca National School of Public Health. Health Science and Technology Information and Communication. Health Information Laboratory. Rio de Janeiro, RJ, Brazil.
Ministério da Saúde. Brazilian Departament of STD, AIDS and Viral Hepatitis. Monitoring and Evaluation Advisory. Brasília, DF, Brasil.
Oswaldo Cruz Foundation. Sérgio Arouca National School of Public Health. Health Science and Technology Information and Communication. Health Information Laboratory. Rio de Janeiro, RJ, Brazil.
Ministério da Saúde. Brazilian Departament of STD, AIDS and Viral Hepatitis. Monitoring and Evaluation Advisory. Brasília, DF, Brasil.
Abstract in Portuguese
Introduction: We investigated sampling methods being used to estimate the HIV prevalence rate among female commercial sex workers. Methods: The studies were classifi ed according to the adequacy or not of the sample size to estimate HIV prevalence rate and according to the sampling method (probabilistic or convenience). Results: We identifi ed 75 studies that estimated the HIV prevalence rate among female sex workers. Most of the studies employed convenience samples. The sample size was not adequate to estimate HIV prevalence rate in 35 studies. Discussion: The use of convenience sample limits statistical inference for the whole group. It was observed that there was an increase in the number of published studies since 2005, as well as in the number of studies that used probabilistic samples. This represents a large advance in the monitoring of risk behavior practices and HIV prevalence rate in this group.
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