You are viewing the site in preview mode

Skip to main content

Advertisement

Table 3 Outcomes of screening for HIV infection in 10,000 pregnant women

From: Prevalence and risk factors for Hepatitis C and HIV-1 infections among pregnant women in Central Brazil

Variables Prevalence 0.09%
Women screened, n 10 000
Women identified as HIV-1 positive 9
Women receiving test results 8.1 (91%)a
Women receiving antiretroviral therapy (ARV) 4.9 – 7.4 (60% – 90%)a
Women submitted to elective cesarean 3.0 – 4.1 (37% – 50%)a
Cases of mother-to-child transmission (MCT) expected among women without intervention 1.14 – 2.04 (14% – 25%)a
Number of cases of mother-to-child transmission prevented with ARV 0.59 (95% CI 0.49–0.64)b 1.59 (95% CI 1.32–1.71)b
Number needed to screen (NNS) to prevent one case of infant HIV infection 4,542 (95% CI 4,141–5,346)c 11,800 (95% CI 10,730–13,928)d
  1. MCT = Mother-to-Child Transmission
  2. ARV = Antiretroviral Therapy
  3. a values in parenthesis are from literature sources
  4. b values obtained from the model
  5. c NNS calculated from the combination of preventive measures: ARV (90% and cesarean section (50%)
  6. d NNS calculated from the combination of preventive measures: ARV (60% and cesarean section (37%)