Progress in Prevention of Mother-to-Child Transmission of HIV in New York State: 1988-2008

Objectives: To assess the outcomes of efforts to prevent mother-to-child transmission (MTCT) of human immunodeficiency virus (HIV) made over the last 2 decades in New York State (NYS), through review of data from multiple sources. Methods: Using available surveillance, laboratory, and program monitoring data, the following were examined for NYS: (1) the rate of prenatal HIV testing, (2) HIV prevalence among childbearing women, (3) maternal prenatal and delivery care, (4) care of HIV-exposed infants, and (5) the rate of MTCT. Trends over time and comparisons among groups were assessed. Results: In NYS, HIV prevalence in childbearing women has declined 70% since its peak in 1989. Rates of prenatal HIV testing have been more than 95% in recent years. Rates of MTCT have decreased significantly; since 2003, transmission in HIV-exposed births has ranged from 1.2% to 2.6% annually. On bivariate analysis, MTCT is more likely to occur with breastfeeding or absence of antiretroviral administration in the prenatal, labor/delivery, and newborn periods. Conclusions: Mother-to-child HIV transmission has declined dramatically in all groups in NYS. Universal newborn screening data have provided the foundation for identifying HIV-exposed births and for initiating follow-up to track all aspects of MTCT in NYS. Remaining challenges include universal prenatal care, prevention of acquisition of HIV infection during pregnancy, and adherence to antiretroviral therapy.