Spatial Epidemiology of HIV Infection
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Data will be extracted from the National Taiwan University Hospital (NTUH) medical records database, geocoded according to the street address so that the case number, incidence, etc could be mapped. The spatial data would be used to detect the aggregation of HIV cases, existence of "hot spots" and then determine if they may merit further investigation or may have occurred by chance. The results from these GIS-based analyses would address local variations in HIV prevalence and transmission.
Condition |
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HIV Infections Acquired Immunodeficiency Syndrome |
Study Type: | Observational |
Study Design: | Time Perspective: Retrospective |
Official Title: | Spatial Epidemiology of HIV Infection |
Enrollment: | 1264 |
Study Start Date: | October 2008 |
Study Completion Date: | August 2009 |
Primary Completion Date: | June 2009 (Final data collection date for primary outcome measure) |
The transmission routes of human immunodeficiency virus (HIV) are well known and many control programs focusing on risk groups and behavior have been undertaken. However, the risk factors of HIV transmission are not only at individual level (eg: demographic, behavior, and genetic risk factors), socioeconomic and environmental factors also take important roles. In Taiwan, few researches explored the spatial distribution of HIV infection. Studies in other countries observed a significant geographic variation in HIV infection. To understand the spatial pattern of HIV infection in depth, the present study aims to retrospectively investigate the epidemiological and geographic characteristics of HIV infection using the medical records database of National Taiwan University Hospital. A Geographic information system (GIS) and spatial statistics will be used to analyze the geographic patterns to determine whether spatial dispersion or clustering. There are two aims of this study. One is to investigate the epidemiology of HIV infection in Taipei City. The second is to analyze the spatial characterizes of HIV infection, including disease mapping, geographic correlation studies, and identifying the presence of HIV clusters and their potential spatial risk factors. In addition, we want to examine whether there are different distributions between different classificatory groups. Finally, we hope that our findings would give some direction for local health and policy planners to improve the HIV intervention and prevention strategies
![](https://webarchive.library.unt.edu/web/20130317081726im_/http://clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
NTUH patients
Inclusion Criteria:
- HIV/AIDS patients of NTUH
Exclusion Criteria:
- HIV/AIDS patient whose address cannot be geocoded
![](https://webarchive.library.unt.edu/web/20130317081726im_/http://clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
Taiwan | |
Institute of Epidemiology, National Taiwan University | |
Taipei, Taiwan |
Study Director: | Chi-Tai Fang, ph.D | Institute of Epidemiology, National Taiwan University |
Study Director: | Tzai-Hung Wen, ph.D | Institute of Epidemiology, National Taiwan University |
Principal Investigator: | Ann-Chi Yang, bechelor | Institute of Epidemiology, National Taiwan University |
![](https://webarchive.library.unt.edu/web/20130317081726im_/http://clinicaltrials.gov/ct2/html/images/frame/triangle.gif)
No publications provided
Responsible Party: | Institute of Epidemiology |
ClinicalTrials.gov Identifier: | NCT01377272 History of Changes |
Other Study ID Numbers: | 200808048R |
Study First Received: | October 22, 2008 |
Last Updated: | July 1, 2011 |
Health Authority: | Taiwan: Department of Health |
Keywords provided by National Taiwan University Hospital:
HIV/AIDS spatial epidemiology geographic information system HIV-infection/Aids |
Additional relevant MeSH terms:
Acquired Immunodeficiency Syndrome HIV Infections Immunologic Deficiency Syndromes Lentivirus Infections Retroviridae Infections RNA Virus Infections |
Virus Diseases Sexually Transmitted Diseases, Viral Sexually Transmitted Diseases Slow Virus Diseases Immune System Diseases |
ClinicalTrials.gov processed this record on March 14, 2013