Associations between exposure to ambient particulate matter and advanced liver fibrosis in Chinese MAFLD patients

Yunfei Xing, Xiangyang Gao, Qin Li, Xueying Li, Youxin Wang, Yifan Yang, Shuhan Yang, Patrick W.C. Lau, Qiang Zeng*, Hui Wang*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

2 Citations (Scopus)

Abstract

Background & Aims: Liver fibrosis is an important feature in patients with metabolic dysfunction-associated fatty liver disease (MAFLD). This study aimed to explore the association between long-term ambient particulate matter (PM) exposure and advanced liver fibrosis (ALF) in MAFLD participants.

Methods: A cross-sectional study of 23170 adults recruited from 33 provinces of China from 2010 to 2020. ALF was detected using the nonalcoholic fatty liver disease fibrosis score (NFS). The annual average levels of particulate matter with aerodynamic diameters of ≤ 1 µm (PM1), ≤ 2.5 µm (PM2.5) and ≤ 10 µm (PM10) were calculated using validated spatiotemporal models. Generalized additive models were applied to analyze the association between PM and ALF in patients with MAFLD.

Results: One-year exposure to higher levels of all PM was found to increase the risk of ALF, with odds ratios (ORs) of 1.10 (95% CI 1.06–1.14), 1.05 (1.03–1.07), and 1.03(1.02–1.04) for each 10 μg/m3 increase in PM1, PM2.5 and PM10, respectively. With the dissection of the impact of PM1 in PM2.5, PM2.5 in PM10 and PM1 in PM10, we found that PM2.5 had a stronger impact on ALF (both Pinteraction<0.05) in comparison with PM1 and PM10.

Conclusions: Long-term exposure to PM is associated with ALF in patients with MAFLD, with PM2.5 playing a dominant role.

Original languageEnglish
Article number132501
Number of pages8
JournalJournal of Hazardous Materials
Volume460
DOIs
Publication statusPublished - 15 Oct 2023

Scopus Subject Areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

User-Defined Keywords

  • Advanced liver fibrosis
  • Ambient particulate matter
  • MAFLD
  • NAFLD fibrosis score

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