Ten-Year-Trend of HIV Prevalence among Pregnant Women in Benin

摘要

Background: HIV infection for children is mainly due to mother-to-child transmission (MTCT) that can occur during pregnancy, childbirth and breastfeeding. In Benin, the residual rate of HIV transmission from mother to child remained high. The objective of the study was to describe a ten-year-trend of HIV prevalence in pregnant women in Benin. Methods: A retrospective study was carried out from 2006 to 2015 across the country and consisted in reviewing the reports of the annual surveys of HIV infection among pregnant women. Chi square test was used to assess the trend over time of HIV prevalence among pregnant women. Equations of regression lines of HIV prevalence trend graphs were estimated to determine the direction of the trend. Results: A total of 138,319 pregnant women participated in the annual HIV surveys from 2006 to 2015. The prevalence of HIV infection from 2006 to 2015 for pregnant women decreased significantly in the group of women aged 20-29 years, in the group of craftswomen and in the group of women with their first pregnancy. In contrary, the prevalence of HIV increased significantly for women with at least four past pregnancies and those writing in local language. Conclusion: The National AIDS control program may take these results into account by maintaining the epidemiological surveillance in HIV, and reinforce interventions for the vulnerable groups where the prevalence increased.