Statistical studies of age – specific hiv - prevalence data
The infectivity function is a function giving a measure of how infectious a given individual is t time units after becoming infected. Today, no feasible and ethically acceptable study design is known, which would lead to estimates of HIV-infection probability within steady heterosexual partnerships,...
- Autores:
-
Knolle, Helmut
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2006
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/40280
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/40280
http://bdigital.unal.edu.co/30377/
- Palabra clave:
- AIDS
Infectivity
Health risk
Branching process
Threshold
Age distribution
Colombia
sida
infectividad
riesgo de salud
proceso ramificado
umbral
distribución de edad
Colombia
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Statistical studies of age – specific hiv - prevalence data |
| title |
Statistical studies of age – specific hiv - prevalence data |
| spellingShingle |
Statistical studies of age – specific hiv - prevalence data AIDS Infectivity Health risk Branching process Threshold Age distribution Colombia sida infectividad riesgo de salud proceso ramificado umbral distribución de edad Colombia |
| title_short |
Statistical studies of age – specific hiv - prevalence data |
| title_full |
Statistical studies of age – specific hiv - prevalence data |
| title_fullStr |
Statistical studies of age – specific hiv - prevalence data |
| title_full_unstemmed |
Statistical studies of age – specific hiv - prevalence data |
| title_sort |
Statistical studies of age – specific hiv - prevalence data |
| dc.creator.fl_str_mv |
Knolle, Helmut |
| dc.contributor.author.spa.fl_str_mv |
Knolle, Helmut |
| dc.subject.proposal.spa.fl_str_mv |
AIDS Infectivity Health risk Branching process Threshold Age distribution Colombia sida infectividad riesgo de salud proceso ramificado umbral distribución de edad Colombia |
| topic |
AIDS Infectivity Health risk Branching process Threshold Age distribution Colombia sida infectividad riesgo de salud proceso ramificado umbral distribución de edad Colombia |
| description |
The infectivity function is a function giving a measure of how infectious a given individual is t time units after becoming infected. Today, no feasible and ethically acceptable study design is known, which would lead to estimates of HIV-infection probability within steady heterosexual partnerships, using standard statistical methodology. In this paper a transmission model is used as a link between the infectivity function and data sets which already exist or can be generated with standard methods and moderate expenses. This model suggests that the distribution of HIV-infections by age and sex depends on the infectivity function as well as on age-dependent patterns of sexual partner choice. Application of the model requires population based data of age-specific HIV-incidences in men and women of the general heterosexual population. At present, the only known data set suitable for this purpose is a set of HIV-test results from a sample of 8690 Colombian women in pregnancy who attended prenatal care. The prevalence of HIV was 0.33% in the group of 12-24 years, but only 0.16% in the group of 25-34 years. The model can explain this strange result. A data set of age-specific HIV-prevalences in heterosexual Colombian men would be useful, but is not known. Therefore, further research and data collecting is required in order to arrive at well founded conclusions. |
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2006 |
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2006 |
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2019-06-28T09:30:56Z |
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2019-06-28T09:30:56Z |
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Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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http://purl.org/coar/resource_type/c_6501 |
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Text |
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http://purl.org/redcol/resource_type/ART |
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https://repositorio.unal.edu.co/handle/unal/40280 |
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http://bdigital.unal.edu.co/30377/ |
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https://repositorio.unal.edu.co/handle/unal/40280 http://bdigital.unal.edu.co/30377/ |
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spa |
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spa |
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http://revistas.unal.edu.co/index.php/estad/article/view/29182 |
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Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística Revista Colombiana de Estadística |
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Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 0120-1751 |
| dc.relation.references.spa.fl_str_mv |
Knolle, Helmut (2006) Statistical studies of age – specific hiv - prevalence data. Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 0120-1751 . |
| dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
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Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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application/pdf |
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Universidad Nacional de Colombia |
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Knolle, Helmutc5610860-23a5-49ad-a840-cd1f02aae1653002019-06-28T09:30:56Z2019-06-28T09:30:56Z2006https://repositorio.unal.edu.co/handle/unal/40280http://bdigital.unal.edu.co/30377/The infectivity function is a function giving a measure of how infectious a given individual is t time units after becoming infected. Today, no feasible and ethically acceptable study design is known, which would lead to estimates of HIV-infection probability within steady heterosexual partnerships, using standard statistical methodology. In this paper a transmission model is used as a link between the infectivity function and data sets which already exist or can be generated with standard methods and moderate expenses. This model suggests that the distribution of HIV-infections by age and sex depends on the infectivity function as well as on age-dependent patterns of sexual partner choice. Application of the model requires population based data of age-specific HIV-incidences in men and women of the general heterosexual population. At present, the only known data set suitable for this purpose is a set of HIV-test results from a sample of 8690 Colombian women in pregnancy who attended prenatal care. The prevalence of HIV was 0.33% in the group of 12-24 years, but only 0.16% in the group of 25-34 years. The model can explain this strange result. A data set of age-specific HIV-prevalences in heterosexual Colombian men would be useful, but is not known. Therefore, further research and data collecting is required in order to arrive at well founded conclusions.La función de infectividad es una función que dice qué tan infecciosa es una persona transcurrido un tiempo t después de haberse infectado. Hoy en día no se conoce ningún diseño de estudio, que sea factible y éticamente aceptable y que conduzca a estimados de la infectividad del VIH entre uniones heterosexuales estables, usando los métodos estadísticos corrientes. Por eso, aquí se utiliza un modelo de transmisión como puente entre la función de infectividad y datos que ya existen o pueden ser generados con pocos gastos. El modelo sugiere que la distribución según sexo y edad de la infección por VIH en la población heterosexual de bajo riesgo depende de la función de infectividad así como de los patrones de mezcla entre diferentes grupos de edad. La aplicación del modelo requiere datos poblacionales sobre la incidencia de la infección en los grupos de edad de hombres y mujeres heterosexuales. Actualmente el único conjunto de datos adecuado consiste en los resultados de pruebas por VIH en 8690 mujeres colombianas en embarazo que asistieron a consulta de control prenatal. La prevalencia del VIH era 0.33% en el grupo de 12-24 años, y 0.16% en el grupo de 25-34 años. El modelo puede explicar esta diferencia. Pero no existen datos sobre prevalencias del VIH en hombres heterosexuales de diferentes edades que se necesitan en este contexto. Por eso, se requieren otras investigaciones y recolecciones de datos para llegar a conclusiones seguras.application/pdfspaUniversidad Nacional de Colombiahttp://revistas.unal.edu.co/index.php/estad/article/view/29182Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de EstadísticaRevista Colombiana de EstadísticaRevista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 0120-1751Knolle, Helmut (2006) Statistical studies of age – specific hiv - prevalence data. Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 Revista Colombiana de Estadística; Vol. 29, núm. 2 (2006); 181-194 0120-1751 .Statistical studies of age – specific hiv - prevalence dataArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTAIDSInfectivityHealth riskBranching processThresholdAge distributionColombiasidainfectividadriesgo de saludproceso ramificadoumbraldistribución de edadColombiaORIGINAL29182-104825-1-PB.pdfapplication/pdf157493https://repositorio.unal.edu.co/bitstream/unal/40280/1/29182-104825-1-PB.pdfb95444c7f031f849d5c81c45e1254791MD51THUMBNAIL29182-104825-1-PB.pdf.jpg29182-104825-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg5453https://repositorio.unal.edu.co/bitstream/unal/40280/2/29182-104825-1-PB.pdf.jpg1f39280267773f57bb09a56fc9ec7f77MD52unal/40280oai:repositorio.unal.edu.co:unal/402802024-01-24 23:07:20.193Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |