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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=89929204 |
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| _version_ | 1866814524100706304 |
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| author | Helmut Knolle |
| author_facet | Helmut Knolle |
| contents | Statistical Studies of Age - Specific HIV - Prevalence Data Helmut Knolle Física, Astronomía y Matemáticas Colombia Threshold Infectivity Health risk Age distribution The infectivity function is a function giving a measure of how infectiousa given individual is t time units after becoming infected. Today, no feasibleand ethically acceptable study design is known, which would lead toestimates of HIV-infection probability within steady heterosexual partnerships,using standard statistical methodology. In this paper a transmissionmodel is used as a link between the infectivity function and data sets whichalready exist or can be generated with standard methods and moderate expenses.This model suggests that the distribution of HIV-infections by ageand sex depends on the infectivity function as well as on age-dependent patternsof sexual partner choice. Application of the model requires populationbaseddata of age-specific HIV-incidences in men and women of the generalheterosexual population. At present, the only known data set suitable forthis purpose is a set of HIV-test results from a sample of 8690 Colombianwomen in pregnancy who attended prenatal care. The prevalence of HIVwas 0.33% in the group of 12-24 years, but only 0.16% in the group of 25-34years. The model can explain this strange result. A data set of age-specificHIV-prevalences in heterosexual Colombian men would be useful, but is notknown. Therefore, further research and data collecting is required in orderto arrive at well founded conclusions. 2006 artículo científico 0120-1751 https://www.redalyc.org/articulo.oa?id=89929204 en http://www.redalyc.org/revista.oa?id=899 Revista Colombiana de Estadística application/pdf Universidad Nacional de Colombia Revista Colombiana de Estadística (Colombia) Num.2 Vol.29 |
| format | Artículo científico |
| id | redalyc_89929204 |
| language | en |
| publishDate | 2006 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Statistical Studies of Age - Specific HIV - Prevalence Data Helmut Knolle Física, Astronomía y Matemáticas Colombia Threshold Infectivity Health risk Age distribution Statistical Studies of Age - Specific HIV - Prevalence Data Helmut Knolle Física, Astronomía y Matemáticas Colombia Threshold Infectivity Health risk Age distribution The infectivity function is a function giving a measure of how infectiousa given individual is t time units after becoming infected. Today, no feasibleand ethically acceptable study design is known, which would lead toestimates of HIV-infection probability within steady heterosexual partnerships,using standard statistical methodology. In this paper a transmissionmodel is used as a link between the infectivity function and data sets whichalready exist or can be generated with standard methods and moderate expenses.This model suggests that the distribution of HIV-infections by ageand sex depends on the infectivity function as well as on age-dependent patternsof sexual partner choice. Application of the model requires populationbaseddata of age-specific HIV-incidences in men and women of the generalheterosexual population. At present, the only known data set suitable forthis purpose is a set of HIV-test results from a sample of 8690 Colombianwomen in pregnancy who attended prenatal care. The prevalence of HIVwas 0.33% in the group of 12-24 years, but only 0.16% in the group of 25-34years. The model can explain this strange result. A data set of age-specificHIV-prevalences in heterosexual Colombian men would be useful, but is notknown. Therefore, further research and data collecting is required in orderto arrive at well founded conclusions. 2006 artículo científico 0120-1751 https://www.redalyc.org/articulo.oa?id=89929204 en http://www.redalyc.org/revista.oa?id=899 Revista Colombiana de Estadística application/pdf Universidad Nacional de Colombia Revista Colombiana de Estadística (Colombia) Num.2 Vol.29 |
| title | Statistical Studies of Age - Specific HIV - Prevalence Data |
| topic | Física, Astronomía y Matemáticas Colombia Threshold Infectivity Health risk Age distribution |
| url | https://www.redalyc.org/articulo.oa?id=89929204 |