Ambient particulate matter, a novel factor hindering life spans of HIV/AIDS patients: Evidence from a ten-year cohort study in Hubei, China

Sci Total Environ. 2023 Jun 1:875:162589. doi: 10.1016/j.scitotenv.2023.162589. Epub 2023 Mar 3.

Abstract

Background: The life spans of human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) patients have been extended in the era of antiretroviral therapy. However, few studies have considered the influence of the environment on the life expectancy of people living with HIV/AIDS. Several studies have investigated mortality and air pollution associations, but the evidence for associations between long-term exposure to particulate matter (PM) and mortality among HIV/AIDS patients remains extremely sparse.

Methods: We conceived a dynamic cohort study by enrolling people with HIV/AIDS from 103 counties in Hubei province, China from 2010 to 2019, with 23,809 persons and 78,457.2 person-years of follow-up. The county-level annual concentrations of PM2.5 and PM10 were extracted from the ChinaHighAirPollutants dataset. Cox proportional hazards models with time-varying exposures were conducted to assess the associations between PM and mortality.

Results: Per 1 μg/m3 increased in PM2.5 and PM10 would elevate 0.69 % (95 % CIs: 0.39, 1.00) and 0.39 % (95 % CIs: 0.18, 0.59) risk of all-cause deaths (ACD) and 1.65 % (95 % CIs: 1.14, 2.17) and 0.90 % (95 % CIs: 0.56, 1.24) of AIDS-related deaths (ARD), respectively. Significantly stronger associations of PM-ARD were found in patients aged over 60 years old, with corresponding excess risk of 2.66 % (95 % CIs: 1.76, 3.58) for PM2.5 and 1.62 (95 % CIs: 1.01, 2.23) for PM10.

Conclusions: This study added to the existing evidence that long-term exposure to ambient PM adversely affects the life spans of HIV/AIDS patients. Hence, public health departments should take proactive measures to prevent further life loss and promote survival among those living with HIV/AIDS.

Keywords: AIDS; Cohort study; HIV; Mortality; Particulate matter.

MeSH terms

  • Acquired Immunodeficiency Syndrome* / chemically induced
  • Acquired Immunodeficiency Syndrome* / epidemiology
  • Aged
  • Air Pollutants* / analysis
  • Air Pollution* / analysis
  • China / epidemiology
  • Cohort Studies
  • Environmental Exposure / adverse effects
  • HIV
  • Humans
  • Longevity
  • Middle Aged
  • Particulate Matter / analysis

Substances

  • Particulate Matter
  • Air Pollutants