The cascade of care to prevent mother-to-child transmission in Rio de Janeiro, Brazil, 1996-2013: improving but still some way to go

Trop Med Int Health. 2017 Oct;22(10):1266-1274. doi: 10.1111/tmi.12925. Epub 2017 Aug 10.

Abstract

Objective: To describe the cascade of care to HIV mother-to-child transmission (PMTCT) in a Rio de Janeiro reference paediatric clinic and evaluate the main factors possibly associated with HIV transmission.

Methods: Data on antenatal care (ANC), perinatal and neonatal assistance to HIV-infected and HIV-exposed but uninfected children assisted in the clinic from 1996 to 2013 were collected. The cascade of care was graphically demonstrated, and possible factors associated with HIV infection were described using regression models for bivariate and multivariate analysis. We imputed missing values of explanatory variables for the final model.

Results: A total of 989 children were included in the analysis: 211 were HIV and 778 HEU. Graphically, the HIV PMTCT cascade of care improved from 1996/2000 to the later periods, but not from 2001/2006 to 2007/2013. The main factor independently associated with the HIV infection over time was breastfeeding. In the period 1996/2000, the lack of antiretroviral use during labour was associated HIV transmission. While in 2001/2007, other modes of delivery but elective Caesarean section, and lack of maternal antiretroviral use during ANC were associated with HIV transmission. In the last period, the main factor associated with transmission was the lack of maternal ANC.

Conclusions: The HIV PMTCT cascade improved over time, but HIV vertical transmission remains a problem, and better access to ANC is needed.

Keywords: HIV; VIH; Rio de Janeiro; cascada; cascade; children; enfants; maternal-to-child transmission; niños; transmisión madre-hijo; transmission mère-enfant.

MeSH terms

  • Adult
  • Anti-HIV Agents / supply & distribution
  • Anti-HIV Agents / therapeutic use*
  • Brazil
  • Breast Feeding* / adverse effects
  • Contraindications
  • Female
  • HIV Infections / drug therapy
  • HIV Infections / psychology*
  • HIV Infections / transmission
  • Humans
  • Infant
  • Infant Formula / supply & distribution
  • Infant, Newborn
  • Infectious Disease Transmission, Vertical / prevention & control*
  • Maternal Age
  • Pregnancy
  • Pregnancy Complications, Infectious / drug therapy*
  • Prenatal Care / methods*
  • Prenatal Care / standards
  • Trimethoprim, Sulfamethoxazole Drug Combination / therapeutic use*
  • Viral Load
  • Young Adult
  • Zidovudine / administration & dosage*
  • Zidovudine / supply & distribution
  • Zidovudine / therapeutic use

Substances

  • Anti-HIV Agents
  • Zidovudine
  • Trimethoprim, Sulfamethoxazole Drug Combination