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Background Human Immunodeficiency Virus (HIV) sentinel surveillance (HSS) among antenatal care (ANC) is used to monitor HIV
trends in general population. Now information on HIV infection available from prevention of parent to child transmission (PPTCT)
programmes. And it was used in this study with the following objectives
Objective 1.To study the HIV trends in the general population of the sub-national geographic level of the country i.e. the state. 2. To
compare data of HIV prevalence estimates obtained from PPTCT and HSS in the state. 3.To find out the usefulness of PPTCT
programme data for HIV surveillance at subnational level in the country.
Methodology The data of HSS and PPTCT programme were obtained from Chhattisgarh State AIDS Control Society (CGSACS),
Raipur, Chhattisgarh. A list of Sites where ANC HSS was carried out during 2004 to 2008 was prepared. HIV prevalence and 95%
confidence interval (CI) were estimated from antenatal attendees in PPTCT and HSS. Correlation coefficient of HIV prevalence in
PPTCT and HSS was also according to the level of HIV test acceptance.
Results From Year 2004-2008, HIV test in sites (Block) of Bilaspur where both PPTCT and HSS were carried out. The mean and
standard deviation (SD) of HIV positive Male & Female are (45.2 18.36), (20, 9.02). The mean & SD of HSS ANC & PPTCT are (22
,9.02), (14.2, 21.04).Overall the correlation of HIV prevalence between PPTCT and HSS was quite high at district level (r=0.9, p<.05)
which is statistically significant. The linear regression has been obtained between dependent variable PPTCT & independent variable
HSS ANC .It is statistically significant (p < .o5) .
Conclusion HIV prevalence estimates among pregnant women in PPTCT program were similar to that of ANC HSS. Routinely collected
PPTCT program data therefore has potential for providing reliable HIV trends at this sub-national level i.e. Chhattisgarh State.

ANC- Antenatal Care
CGSACS-Chhattisgarh state AIDS control society
HIV- Human Immunodeficiency Virus
HSSHIV sentinel surveillance
PPTCT- Prevention of parental to child transmission.
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