Cardiovascular Disease Burden in Rural Africa: Does HIV and Antiretroviral Treatment Play a Role?: Baseline Analysis of the Ndlovu Cohort Study

J Am Heart Assoc. 2020 Apr 7;9(7):e013466. doi: 10.1161/JAHA.119.013466. Epub 2020 Mar 30.

Abstract

Background HIV is associated with an increased risk of cardiovascular disease (CVD) in high-income countries. Little is known about the CVD burden in sub-Saharan Africa, where 70% of the world's HIV-positive population lives. This study aims to provide insight into the burden of CVD risk in a rural setting in sub-Saharan Africa considering HIV infection and antiretroviral therapy (ART). Methods and Results A cross-sectional analysis was conducted of the baseline of the Ndlovu Cohort study including HIV-negative and HIV-positive participants in rural South Africa between 2014 and 2017. Information was collected on demographics, socioeconomic status, and CVD risk factors. Carotid intima-media thickness measurement was performed. The influence of HIV and ART on the burden of CVD was determined by comparing HIV-positive participants who were ART naive on first-line or second-line ART with HIV-negative participants. In total, 1927 participants were included, of whom 887 (46%) were HIV positive and 54% women. The median age was 38 years. Overall, 690 participants (79%) were on ART, with 613 (89%) on first-line and 77 (11%) on second-line therapy. Participants with HIV had lower values for most of the CVD risk factors but higher C-reactive protein levels than HIV-negative participants. ART-naive, HIV-positive participants had similar carotid intima-media thickness compared with HIV-negative participants but carotid intima-media thickness was increased for participants on ART aged 30 years and older compared with HIV-negative participants. Conclusions HIV-positive participants presented with a favorable CVD risk profile compared with HIV-negative participants. However, carotid intima-media thickness was increased in HIV-positive participants on ART, indicating a higher burden of subclinical CVD for the HIV-positive population.

Keywords: HIV; cardiovascular disease; carotid intima‐media thickness; sub‐Saharan Africa.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anti-HIV Agents / therapeutic use*
  • Cardiovascular Diseases / diagnostic imaging
  • Cardiovascular Diseases / epidemiology*
  • Carotid Intima-Media Thickness
  • Cross-Sectional Studies
  • Female
  • HIV Infections / diagnosis
  • HIV Infections / drug therapy*
  • HIV Infections / epidemiology
  • Heart Disease Risk Factors
  • Humans
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Prognosis
  • Risk Assessment
  • Rural Health*
  • South Africa / epidemiology
  • Young Adult

Substances

  • Anti-HIV Agents