A Geographical Analysis of HIV/AIDS Infection in Nigeria, 1991-2001

Obidoa, Chinekwu Azuka; Cromley, Robert G.
January 2012
Journal of Social, Behavioral & Health Sciences;2012, Vol. 6 Issue 1, p13
Academic Journal
Objectives: Within the extensive literature accumulating on HIV/AIDS in Nigeria, investigations concerning the spatial dimensions of the infection are virtually nonexistent. An understanding of the spatial dimensions of the HIV/AIDS epidemic is central to the development and implementation of appropriate intervention strategies. This study is a geographic analysis of HIV/AIDS infection in Nigeria from 1991 to 2001. The three objectives of this study were (1) to determine the geographic pattern of HIV prevalence rates in Nigeria, from 1991 to 2001 (2) to determine if the observed pattern of the epidemic is influenced by transportation factors, and (3) to examine the diffusion pattern of the epidemic. Methods: Data was spruced from HIV/AIDS sentinel surveys conducted in Nigeria 1991- 2001. Data analyses involved descriptive cartographic analysis, spatial autocorrelation analysis, spatial-temporal analysis, and comparative data analysis. Results: Geographic analyses revealed distinctive regional differences in the spatial pattern and intensity of HIV/AIDS infection within the country. Spatial autocorrelation analyses indicated that HIV/AIDS rates were strongly autocorrelated. The epidemic's epicenter was located in a narrow contiguous band bypassed by a major highway in the eastern part of the country. The diffusion processes indicated a general trend of increasing spread to rural Nigeria. Conclusion: This study provides one of the first in-depth geographic analyses of the HIV/AIDS infection in Nigeria in the first decade of the epidemic. More detailed and comprehensive HIV/AIDS data is required for further study of the spatial epidemiology of the infection.


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