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Role of geospatial mapping in the planning of HIV programs: A case study from Southern India

Geographic information systems (GIS) tools can be used to understand the spatial distribution of local HIV epidemics but are often underutilized, especially in low-middle income countries. We present characteristics of an HIV epidemic within Hyderabad, a large city in southern India, as a case study...

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Autores principales: Prabhu, Sandeep, Mehta, Shruti H., McFall, Allison M., Srikrishnan, Aylur K., Vasudevan, Canjeevaram K., Lucas, Gregory M., Celentano, David D., Solomon, Sunil S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Lippincott Williams & Wilkins 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8389960/
https://www.ncbi.nlm.nih.gov/pubmed/34449513
http://dx.doi.org/10.1097/MD.0000000000027092
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author Prabhu, Sandeep
Mehta, Shruti H.
McFall, Allison M.
Srikrishnan, Aylur K.
Vasudevan, Canjeevaram K.
Lucas, Gregory M.
Celentano, David D.
Solomon, Sunil S.
author_facet Prabhu, Sandeep
Mehta, Shruti H.
McFall, Allison M.
Srikrishnan, Aylur K.
Vasudevan, Canjeevaram K.
Lucas, Gregory M.
Celentano, David D.
Solomon, Sunil S.
author_sort Prabhu, Sandeep
collection PubMed
description Geographic information systems (GIS) tools can be used to understand the spatial distribution of local HIV epidemics but are often underutilized, especially in low-middle income countries. We present characteristics of an HIV epidemic within Hyderabad, a large city in southern India, as a case study to highlight the utility of such data in program planning. Cross-sectional sample recruited using respondent-driven sampling in a cluster-randomized trial. We analyzed data from 2 cross-sectional respondent-driven sampling surveys of MSM in Hyderabad, which were conducted as part of a cluster-randomized trial. All participants were tested for HIV and those positive underwent viral load quantification. ArcGIS was used to create heat maps of MSM distribution using self-reported postal code of residence and combined into larger zones containing at least 200 MSM. Postal code data was available for 661 MSM (66.2%) in the baseline and 978 MSM (97.8%) in the follow-up survey. The proportion of HIV-positive MSM (12.7–15.7%) and prevalence of virally suppressed persons (2.6–8.2%) increased between the 2 surveys. The distribution of all MSM, HIV-positive MSM, and HIV-viremic MSM differed significantly by geographic zone with several zones having higher numbers of HIV-positive and viremic individuals than would be expected based on the distribution of all MSM. The prevalence of HIV and HIV viremia among MSM differed by geographic zones within a city and evolved over time. Such data could be critical to improving program implementation efficiency by accurately targeting resources to population characteristics.
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spelling pubmed-83899602021-09-02 Role of geospatial mapping in the planning of HIV programs: A case study from Southern India Prabhu, Sandeep Mehta, Shruti H. McFall, Allison M. Srikrishnan, Aylur K. Vasudevan, Canjeevaram K. Lucas, Gregory M. Celentano, David D. Solomon, Sunil S. Medicine (Baltimore) 4400 Geographic information systems (GIS) tools can be used to understand the spatial distribution of local HIV epidemics but are often underutilized, especially in low-middle income countries. We present characteristics of an HIV epidemic within Hyderabad, a large city in southern India, as a case study to highlight the utility of such data in program planning. Cross-sectional sample recruited using respondent-driven sampling in a cluster-randomized trial. We analyzed data from 2 cross-sectional respondent-driven sampling surveys of MSM in Hyderabad, which were conducted as part of a cluster-randomized trial. All participants were tested for HIV and those positive underwent viral load quantification. ArcGIS was used to create heat maps of MSM distribution using self-reported postal code of residence and combined into larger zones containing at least 200 MSM. Postal code data was available for 661 MSM (66.2%) in the baseline and 978 MSM (97.8%) in the follow-up survey. The proportion of HIV-positive MSM (12.7–15.7%) and prevalence of virally suppressed persons (2.6–8.2%) increased between the 2 surveys. The distribution of all MSM, HIV-positive MSM, and HIV-viremic MSM differed significantly by geographic zone with several zones having higher numbers of HIV-positive and viremic individuals than would be expected based on the distribution of all MSM. The prevalence of HIV and HIV viremia among MSM differed by geographic zones within a city and evolved over time. Such data could be critical to improving program implementation efficiency by accurately targeting resources to population characteristics. Lippincott Williams & Wilkins 2021-08-27 /pmc/articles/PMC8389960/ /pubmed/34449513 http://dx.doi.org/10.1097/MD.0000000000027092 Text en Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc/4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
spellingShingle 4400
Prabhu, Sandeep
Mehta, Shruti H.
McFall, Allison M.
Srikrishnan, Aylur K.
Vasudevan, Canjeevaram K.
Lucas, Gregory M.
Celentano, David D.
Solomon, Sunil S.
Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title_full Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title_fullStr Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title_full_unstemmed Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title_short Role of geospatial mapping in the planning of HIV programs: A case study from Southern India
title_sort role of geospatial mapping in the planning of hiv programs: a case study from southern india
topic 4400
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8389960/
https://www.ncbi.nlm.nih.gov/pubmed/34449513
http://dx.doi.org/10.1097/MD.0000000000027092
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